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Finding the Third Proportional to 20,442 and 28,737

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Solution

The third proportional to 20,442 and 28,737 is: 40,397.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,442 : 28,737 = 28,737 : x
  2. Step 2: Convert to fraction form
    20,442/28,737 = 28,737/x
  3. Step 3: Cross multiply
    20,442x = 28,737 × 28,737
  4. Step 4: Simplify right side
    20,442x = 825,815,169
  5. Step 5: Solve for x
    x = 825,815,169/20,442
  6. Step 6: Final answer
    x = 40,397.96

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.