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Finding the Third Proportional to 8,404.25 and 20,372.75

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Solution

The third proportional to 8,404.25 and 20,372.75 is: 49,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,404.25 : 20,372.75 = 20,372.75 : x
  2. Step 2: Convert to fraction form
    8,404.25/20,372.75 = 20,372.75/x
  3. Step 3: Cross multiply
    8,404.25x = 20,372.75 × 20,372.75
  4. Step 4: Simplify right side
    8,404.25x = 415,048,942.56
  5. Step 5: Solve for x
    x = 415,048,942.56/8,404.25
  6. Step 6: Final answer
    x = 49,385.60

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.