Home / 38,480.45-57,716.88-18,772.61

Finding the Fourth Proportional to 38,480.45, 57,716.88 and 18,772.61

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Solution

The fourth proportional to 38,480.45, 57,716.88 and 18,772.61 is: 28,157.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480.45 : 57,716.88 = 18,772.61 : x
  2. Step 2: Convert to fraction form
    38,480.45/57,716.88 = 18,772.61/x
  3. Step 3: Cross multiply
    38,480.45x = 57,716.88 × 18,772.61
  4. Step 4: Simplify right side
    38,480.45x = 1,083,496,190.07
  5. Step 5: Solve for x
    x = 1,083,496,190.07/38,480.45
  6. Step 6: Final answer
    x = 28,157.06

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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.