How To Solve A Proportion Word Problem

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The unknown here is the amount of money you'll make for 31 hours of work.

Let's call the unknown x, and set up another ratio comparing these two quantities.

Sure, with the right numbers, you can forgo setting up an algebraic equation to determine the amounts of dry rice and water.

What happens when the numbers are not so friendly, however?

Mess it up, and you’ll be scooping a gummy mess on top of your guests' crawfish étouffée.

Because you are quadrupling your guest list (3 people * 4 = 12 people), you must quadruple your recipe. These shifts in a recipe demonstrate the heart of proportions: using a ratio to accommodate life's greater and smaller changes.Suppose you recently got a job, and you just received your first paycheck. Next week, you are scheduled to work 31 hours, and you are wondering how much your paycheck for that week will be.The answer to this question can be found using proportions.Lastly, we can use the proportion to solve for the unknown.Suppose you are baking cookies for an upcoming event.To cross multiply, take the first fraction's numerator and multiply it by the second fraction's denominator.Then take the second fraction's numerator and multiply it by the first fraction's denominator.A proportion is an equation that sets two ratios equal to each other, where a ratio is a fraction comparing two different values.Let's take a look at how to find an unknown in a proportion.It is important to note that you want your quantities in the numerator and denominator to be consistent in both ratios of the proportion.We see that we did this with our example, since hours is in the numerator in both ratios and dollars is in the denominator in both ratios.


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