Home / 16,830.13-25,244.28-5,142.43

Finding the Fourth Proportional to 16,830.13, 25,244.28 and 5,142.43

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Solution

The fourth proportional to 16,830.13, 25,244.28 and 5,142.43 is: 7,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.13 : 25,244.28 = 5,142.43 : x
  2. Step 2: Convert to fraction form
    16,830.13/25,244.28 = 5,142.43/x
  3. Step 3: Cross multiply
    16,830.13x = 25,244.28 × 5,142.43
  4. Step 4: Simplify right side
    16,830.13x = 129,816,942.80
  5. Step 5: Solve for x
    x = 129,816,942.80/16,830.13
  6. Step 6: Final answer
    x = 7,713.37

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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.