Home / 29,138.85-43,708.28-9,149.84

Finding the Fourth Proportional to 29,138.85, 43,708.28 and 9,149.84

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Solution

The fourth proportional to 29,138.85, 43,708.28 and 9,149.84 is: 13,724.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,138.85 : 43,708.28 = 9,149.84 : x
  2. Step 2: Convert to fraction form
    29,138.85/43,708.28 = 9,149.84/x
  3. Step 3: Cross multiply
    29,138.85x = 43,708.28 × 9,149.84
  4. Step 4: Simplify right side
    29,138.85x = 399,923,504.38
  5. Step 5: Solve for x
    x = 399,923,504.38/29,138.85
  6. Step 6: Final answer
    x = 13,724.75

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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.