Home / 15,640.20-23,456.20-4,543.92

Finding the Fourth Proportional to 15,640.20, 23,456.20 and 4,543.92

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Solution

The fourth proportional to 15,640.20, 23,456.20 and 4,543.92 is: 6,814.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.20 : 23,456.20 = 4,543.92 : x
  2. Step 2: Convert to fraction form
    15,640.20/23,456.20 = 4,543.92/x
  3. Step 3: Cross multiply
    15,640.20x = 23,456.20 × 4,543.92
  4. Step 4: Simplify right side
    15,640.20x = 106,583,096.30
  5. Step 5: Solve for x
    x = 106,583,096.30/15,640.20
  6. Step 6: Final answer
    x = 6,814.69

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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.