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Finding the Third Proportional to 20,847 and 34,618.50

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Solution

The third proportional to 20,847 and 34,618.50 is: 57,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,847 : 34,618.50 = 34,618.50 : x
  2. Step 2: Convert to fraction form
    20,847/34,618.50 = 34,618.50/x
  3. Step 3: Cross multiply
    20,847x = 34,618.50 × 34,618.50
  4. Step 4: Simplify right side
    20,847x = 1,198,440,542.25
  5. Step 5: Solve for x
    x = 1,198,440,542.25/20,847
  6. Step 6: Final answer
    x = 57,487.43

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Why These Related Problems?

These problems maintain the same ratio (1.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.