Home / 31,449.06-47,180.88-13,919.04

Finding the Fourth Proportional to 31,449.06, 47,180.88 and 13,919.04

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Solution

The fourth proportional to 31,449.06, 47,180.88 and 13,919.04 is: 20,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.06 : 47,180.88 = 13,919.04 : x
  2. Step 2: Convert to fraction form
    31,449.06/47,180.88 = 13,919.04/x
  3. Step 3: Cross multiply
    31,449.06x = 47,180.88 × 13,919.04
  4. Step 4: Simplify right side
    31,449.06x = 656,712,555.96
  5. Step 5: Solve for x
    x = 656,712,555.96/31,449.06
  6. Step 6: Final answer
    x = 20,881.79

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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.