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Finding the Third Proportional to 9,555.75 and 20,711.25

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Solution

The third proportional to 9,555.75 and 20,711.25 is: 44,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.75 : 20,711.25 = 20,711.25 : x
  2. Step 2: Convert to fraction form
    9,555.75/20,711.25 = 20,711.25/x
  3. Step 3: Cross multiply
    9,555.75x = 20,711.25 × 20,711.25
  4. Step 4: Simplify right side
    9,555.75x = 428,955,876.56
  5. Step 5: Solve for x
    x = 428,955,876.56/9,555.75
  6. Step 6: Final answer
    x = 44,889.82

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.