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Finding the Third Proportional to 9,711.50 and 20,839

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Solution

The third proportional to 9,711.50 and 20,839 is: 44,716.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.50 : 20,839 = 20,839 : x
  2. Step 2: Convert to fraction form
    9,711.50/20,839 = 20,839/x
  3. Step 3: Cross multiply
    9,711.50x = 20,839 × 20,839
  4. Step 4: Simplify right side
    9,711.50x = 434,263,921
  5. Step 5: Solve for x
    x = 434,263,921/9,711.50
  6. Step 6: Final answer
    x = 44,716.46

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.