Home / 38,781.42-58,174.97-12,505.02

Finding the Fourth Proportional to 38,781.42, 58,174.97 and 12,505.02

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Solution

The fourth proportional to 38,781.42, 58,174.97 and 12,505.02 is: 18,758.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,781.42 : 58,174.97 = 12,505.02 : x
  2. Step 2: Convert to fraction form
    38,781.42/58,174.97 = 12,505.02/x
  3. Step 3: Cross multiply
    38,781.42x = 58,174.97 × 12,505.02
  4. Step 4: Simplify right side
    38,781.42x = 727,479,100.82
  5. Step 5: Solve for x
    x = 727,479,100.82/38,781.42
  6. Step 6: Final answer
    x = 18,758.44

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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.