Home / 38,951.64-58,435.30-12,301.78

Finding the Fourth Proportional to 38,951.64, 58,435.30 and 12,301.78

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Solution

The fourth proportional to 38,951.64, 58,435.30 and 12,301.78 is: 18,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,951.64 : 58,435.30 = 12,301.78 : x
  2. Step 2: Convert to fraction form
    38,951.64/58,435.30 = 12,301.78/x
  3. Step 3: Cross multiply
    38,951.64x = 58,435.30 × 12,301.78
  4. Step 4: Simplify right side
    38,951.64x = 718,858,204.83
  5. Step 5: Solve for x
    x = 718,858,204.83/38,951.64
  6. Step 6: Final answer
    x = 18,455.15

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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.