Home / 38,543.20-57,821.28-12,245.92

Finding the Fourth Proportional to 38,543.20, 57,821.28 and 12,245.92

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Solution

The fourth proportional to 38,543.20, 57,821.28 and 12,245.92 is: 18,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,543.20 : 57,821.28 = 12,245.92 : x
  2. Step 2: Convert to fraction form
    38,543.20/57,821.28 = 12,245.92/x
  3. Step 3: Cross multiply
    38,543.20x = 57,821.28 × 12,245.92
  4. Step 4: Simplify right side
    38,543.20x = 708,074,769.18
  5. Step 5: Solve for x
    x = 708,074,769.18/38,543.20
  6. Step 6: Final answer
    x = 18,370.94

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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.