Home / 21,229.53-31,844.59-8,082.62

Finding the Fourth Proportional to 21,229.53, 31,844.59 and 8,082.62

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Solution

The fourth proportional to 21,229.53, 31,844.59 and 8,082.62 is: 12,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.53 : 31,844.59 = 8,082.62 : x
  2. Step 2: Convert to fraction form
    21,229.53/31,844.59 = 8,082.62/x
  3. Step 3: Cross multiply
    21,229.53x = 31,844.59 × 8,082.62
  4. Step 4: Simplify right side
    21,229.53x = 257,387,560.80
  5. Step 5: Solve for x
    x = 257,387,560.80/21,229.53
  6. Step 6: Final answer
    x = 12,124.04

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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.