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Finding the Third Proportional to 10,306.50 and 20,451

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Solution

The third proportional to 10,306.50 and 20,451 is: 40,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,306.50 : 20,451 = 20,451 : x
  2. Step 2: Convert to fraction form
    10,306.50/20,451 = 20,451/x
  3. Step 3: Cross multiply
    10,306.50x = 20,451 × 20,451
  4. Step 4: Simplify right side
    10,306.50x = 418,243,401
  5. Step 5: Solve for x
    x = 418,243,401/10,306.50
  6. Step 6: Final answer
    x = 40,580.55

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Why These Related Problems?

These problems maintain the same ratio (1.98) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.