Home / 38,480.90-57,723.15-12,187.70

Finding the Fourth Proportional to 38,480.90, 57,723.15 and 12,187.70

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Solution

The fourth proportional to 38,480.90, 57,723.15 and 12,187.70 is: 18,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.90 : 57,723.15 = 12,187.70 : x
  2. Step 2: Convert to fraction form
    38,480.90/57,723.15 = 12,187.70/x
  3. Step 3: Cross multiply
    38,480.90x = 57,723.15 × 12,187.70
  4. Step 4: Simplify right side
    38,480.90x = 703,512,435.26
  5. Step 5: Solve for x
    x = 703,512,435.26/38,480.90
  6. Step 6: Final answer
    x = 18,282.12

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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.