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Finding the Third Proportional to 15,524 and 20,531

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Solution

The third proportional to 15,524 and 20,531 is: 27,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524 : 20,531 = 20,531 : x
  2. Step 2: Convert to fraction form
    15,524/20,531 = 20,531/x
  3. Step 3: Cross multiply
    15,524x = 20,531 × 20,531
  4. Step 4: Simplify right side
    15,524x = 421,521,961
  5. Step 5: Solve for x
    x = 421,521,961/15,524
  6. Step 6: Final answer
    x = 27,152.92

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.