Home / 38,498.60-57,713.52-20,738.90

Finding the Fourth Proportional to 38,498.60, 57,713.52 and 20,738.90

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Solution

The fourth proportional to 38,498.60, 57,713.52 and 20,738.90 is: 31,089.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,498.60 : 57,713.52 = 20,738.90 : x
  2. Step 2: Convert to fraction form
    38,498.60/57,713.52 = 20,738.90/x
  3. Step 3: Cross multiply
    38,498.60x = 57,713.52 × 20,738.90
  4. Step 4: Simplify right side
    38,498.60x = 1,196,914,919.93
  5. Step 5: Solve for x
    x = 1,196,914,919.93/38,498.60
  6. Step 6: Final answer
    x = 31,089.83

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1.5x scale

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.