Home / 38,785.73-58,187.69-12,489.48

Finding the Fourth Proportional to 38,785.73, 58,187.69 and 12,489.48

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Solution

The fourth proportional to 38,785.73, 58,187.69 and 12,489.48 is: 18,737.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.73 : 58,187.69 = 12,489.48 : x
  2. Step 2: Convert to fraction form
    38,785.73/58,187.69 = 12,489.48/x
  3. Step 3: Cross multiply
    38,785.73x = 58,187.69 × 12,489.48
  4. Step 4: Simplify right side
    38,785.73x = 726,733,928.05
  5. Step 5: Solve for x
    x = 726,733,928.05/38,785.73
  6. Step 6: Final answer
    x = 18,737.15

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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.