Finding the Third Proportional to 15,272 and 21,788
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Solution
The third proportional to 15,272 and 21,788 is: 31,084.14
Step by Step Solution
- Step 1: Write the proportion equation
15,272 : 21,788 = 21,788 : x - Step 2: Convert to fraction form
15,272/21,788 = 21,788/x - Step 3: Cross multiply
15,272x = 21,788 × 21,788 - Step 4: Simplify right side
15,272x = 474,716,944 - Step 5: Solve for x
x = 474,716,944/15,272 - Step 6: Final answer
x = 31,084.14
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Why These Related Problems?
These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.