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Finding the Third Proportional to 18,331 and 28,591

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Solution

The third proportional to 18,331 and 28,591 is: 44,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331 : 28,591 = 28,591 : x
  2. Step 2: Convert to fraction form
    18,331/28,591 = 28,591/x
  3. Step 3: Cross multiply
    18,331x = 28,591 × 28,591
  4. Step 4: Simplify right side
    18,331x = 817,445,281
  5. Step 5: Solve for x
    x = 817,445,281/18,331
  6. Step 6: Final answer
    x = 44,593.60

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.