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Finding the Fourth Proportional to 16,239.78, 24,359.64 and 3,927.78

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Solution

The fourth proportional to 16,239.78, 24,359.64 and 3,927.78 is: 5,891.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,239.78 : 24,359.64 = 3,927.78 : x
  2. Step 2: Convert to fraction form
    16,239.78/24,359.64 = 3,927.78/x
  3. Step 3: Cross multiply
    16,239.78x = 24,359.64 × 3,927.78
  4. Step 4: Simplify right side
    16,239.78x = 95,679,306.80
  5. Step 5: Solve for x
    x = 95,679,306.80/16,239.78
  6. Step 6: Final answer
    x = 5,891.66

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1.5x scale

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.