Home / 38,454.76-57,578.30-19,947.88

Finding the Fourth Proportional to 38,454.76, 57,578.30 and 19,947.88

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Solution

The fourth proportional to 38,454.76, 57,578.30 and 19,947.88 is: 29,867.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.76 : 57,578.30 = 19,947.88 : x
  2. Step 2: Convert to fraction form
    38,454.76/57,578.30 = 19,947.88/x
  3. Step 3: Cross multiply
    38,454.76x = 57,578.30 × 19,947.88
  4. Step 4: Simplify right side
    38,454.76x = 1,148,565,019.00
  5. Step 5: Solve for x
    x = 1,148,565,019.00/38,454.76
  6. Step 6: Final answer
    x = 29,867.95

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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.