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Finding the Third Proportional to 20,149.50 and 28,325

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Solution

The third proportional to 20,149.50 and 28,325 is: 39,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.50 : 28,325 = 28,325 : x
  2. Step 2: Convert to fraction form
    20,149.50/28,325 = 28,325/x
  3. Step 3: Cross multiply
    20,149.50x = 28,325 × 28,325
  4. Step 4: Simplify right side
    20,149.50x = 802,305,625
  5. Step 5: Solve for x
    x = 802,305,625/20,149.50
  6. Step 6: Final answer
    x = 39,817.64

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.