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Finding the Third Proportional to 20,132 and 28,636

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Solution

The third proportional to 20,132 and 28,636 is: 40,732.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132 : 28,636 = 28,636 : x
  2. Step 2: Convert to fraction form
    20,132/28,636 = 28,636/x
  3. Step 3: Cross multiply
    20,132x = 28,636 × 28,636
  4. Step 4: Simplify right side
    20,132x = 820,020,496
  5. Step 5: Solve for x
    x = 820,020,496/20,132
  6. Step 6: Final answer
    x = 40,732.19

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.