Home / 20,250.43-30,375.92-7,103.19

Finding the Fourth Proportional to 20,250.43, 30,375.92 and 7,103.19

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Solution

The fourth proportional to 20,250.43, 30,375.92 and 7,103.19 is: 10,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.43 : 30,375.92 = 7,103.19 : x
  2. Step 2: Convert to fraction form
    20,250.43/30,375.92 = 7,103.19/x
  3. Step 3: Cross multiply
    20,250.43x = 30,375.92 × 7,103.19
  4. Step 4: Simplify right side
    20,250.43x = 215,765,931.18
  5. Step 5: Solve for x
    x = 215,765,931.18/20,250.43
  6. Step 6: Final answer
    x = 10,654.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.