Home / 31,863.60-47,787.19-13,148.95

Finding the Fourth Proportional to 31,863.60, 47,787.19 and 13,148.95

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Solution

The fourth proportional to 31,863.60, 47,787.19 and 13,148.95 is: 19,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.60 : 47,787.19 = 13,148.95 : x
  2. Step 2: Convert to fraction form
    31,863.60/47,787.19 = 13,148.95/x
  3. Step 3: Cross multiply
    31,863.60x = 47,787.19 × 13,148.95
  4. Step 4: Simplify right side
    31,863.60x = 628,351,371.95
  5. Step 5: Solve for x
    x = 628,351,371.95/31,863.60
  6. Step 6: Final answer
    x = 19,720.04

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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.