Home / 42,452.60-63,592.20-20,198.72

Finding the Fourth Proportional to 42,452.60, 63,592.20 and 20,198.72

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Solution

The fourth proportional to 42,452.60, 63,592.20 and 20,198.72 is: 30,256.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,452.60 : 63,592.20 = 20,198.72 : x
  2. Step 2: Convert to fraction form
    42,452.60/63,592.20 = 20,198.72/x
  3. Step 3: Cross multiply
    42,452.60x = 63,592.20 × 20,198.72
  4. Step 4: Simplify right side
    42,452.60x = 1,284,481,041.98
  5. Step 5: Solve for x
    x = 1,284,481,041.98/42,452.60
  6. Step 6: Final answer
    x = 30,256.83

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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.