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Finding the Third Proportional to 15,332 and 20,636

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Solution

The third proportional to 15,332 and 20,636 is: 27,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,332 : 20,636 = 20,636 : x
  2. Step 2: Convert to fraction form
    15,332/20,636 = 20,636/x
  3. Step 3: Cross multiply
    15,332x = 20,636 × 20,636
  4. Step 4: Simplify right side
    15,332x = 425,844,496
  5. Step 5: Solve for x
    x = 425,844,496/15,332
  6. Step 6: Final answer
    x = 27,774.88

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.