Home / 38,449.20-57,615.36-28,542

Finding the Fourth Proportional to 38,449.20, 57,615.36 and 28,542

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Solution

The fourth proportional to 38,449.20, 57,615.36 and 28,542 is: 42,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,449.20 : 57,615.36 = 28,542 : x
  2. Step 2: Convert to fraction form
    38,449.20/57,615.36 = 28,542/x
  3. Step 3: Cross multiply
    38,449.20x = 57,615.36 × 28,542
  4. Step 4: Simplify right side
    38,449.20x = 1,644,457,605.12
  5. Step 5: Solve for x
    x = 1,644,457,605.12/38,449.20
  6. Step 6: Final answer
    x = 42,769.62

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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.