Home / 38,520.20-57,785.70-15,141.20

Finding the Fourth Proportional to 38,520.20, 57,785.70 and 15,141.20

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Solution

The fourth proportional to 38,520.20, 57,785.70 and 15,141.20 is: 22,713.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.20 : 57,785.70 = 15,141.20 : x
  2. Step 2: Convert to fraction form
    38,520.20/57,785.70 = 15,141.20/x
  3. Step 3: Cross multiply
    38,520.20x = 57,785.70 × 15,141.20
  4. Step 4: Simplify right side
    38,520.20x = 874,944,840.84
  5. Step 5: Solve for x
    x = 874,944,840.84/38,520.20
  6. Step 6: Final answer
    x = 22,713.92

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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.