Home / 31,788.88-47,684.32-15,150.72

Finding the Fourth Proportional to 31,788.88, 47,684.32 and 15,150.72

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Solution

The fourth proportional to 31,788.88, 47,684.32 and 15,150.72 is: 22,726.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,788.88 : 47,684.32 = 15,150.72 : x
  2. Step 2: Convert to fraction form
    31,788.88/47,684.32 = 15,150.72/x
  3. Step 3: Cross multiply
    31,788.88x = 47,684.32 × 15,150.72
  4. Step 4: Simplify right side
    31,788.88x = 722,451,780.71
  5. Step 5: Solve for x
    x = 722,451,780.71/31,788.88
  6. Step 6: Final answer
    x = 22,726.56

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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.