Home / 21,397.76-32,098.26-5,815.16

Finding the Fourth Proportional to 21,397.76, 32,098.26 and 5,815.16

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Solution

The fourth proportional to 21,397.76, 32,098.26 and 5,815.16 is: 8,723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.76 : 32,098.26 = 5,815.16 : x
  2. Step 2: Convert to fraction form
    21,397.76/32,098.26 = 5,815.16/x
  3. Step 3: Cross multiply
    21,397.76x = 32,098.26 × 5,815.16
  4. Step 4: Simplify right side
    21,397.76x = 186,656,517.62
  5. Step 5: Solve for x
    x = 186,656,517.62/21,397.76
  6. Step 6: Final answer
    x = 8,723.18

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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.