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Finding the Third Proportional to 10,107 and 20,718

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Solution

The third proportional to 10,107 and 20,718 is: 42,469.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107 : 20,718 = 20,718 : x
  2. Step 2: Convert to fraction form
    10,107/20,718 = 20,718/x
  3. Step 3: Cross multiply
    10,107x = 20,718 × 20,718
  4. Step 4: Simplify right side
    10,107x = 429,235,524
  5. Step 5: Solve for x
    x = 429,235,524/10,107
  6. Step 6: Final answer
    x = 42,469.13

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.