Home / 18,729.50-28,098.28-5,582.92

Finding the Fourth Proportional to 18,729.50, 28,098.28 and 5,582.92

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Solution

The fourth proportional to 18,729.50, 28,098.28 and 5,582.92 is: 8,375.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.50 : 28,098.28 = 5,582.92 : x
  2. Step 2: Convert to fraction form
    18,729.50/28,098.28 = 5,582.92/x
  3. Step 3: Cross multiply
    18,729.50x = 28,098.28 × 5,582.92
  4. Step 4: Simplify right side
    18,729.50x = 156,870,449.38
  5. Step 5: Solve for x
    x = 156,870,449.38/18,729.50
  6. Step 6: Final answer
    x = 8,375.58

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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.