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Finding the Third Proportional to 20,330 and 29,591

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Solution

The third proportional to 20,330 and 29,591 is: 43,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330 : 29,591 = 29,591 : x
  2. Step 2: Convert to fraction form
    20,330/29,591 = 29,591/x
  3. Step 3: Cross multiply
    20,330x = 29,591 × 29,591
  4. Step 4: Simplify right side
    20,330x = 875,627,281
  5. Step 5: Solve for x
    x = 875,627,281/20,330
  6. Step 6: Final answer
    x = 43,070.70

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.