Home / 38,785.22-58,186.94-12,488.97

Finding the Fourth Proportional to 38,785.22, 58,186.94 and 12,488.97

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Solution

The fourth proportional to 38,785.22, 58,186.94 and 12,488.97 is: 18,736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.22 : 58,186.94 = 12,488.97 : x
  2. Step 2: Convert to fraction form
    38,785.22/58,186.94 = 12,488.97/x
  3. Step 3: Cross multiply
    38,785.22x = 58,186.94 × 12,488.97
  4. Step 4: Simplify right side
    38,785.22x = 726,694,948.05
  5. Step 5: Solve for x
    x = 726,694,948.05/38,785.22
  6. Step 6: Final answer
    x = 18,736.39

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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.