Home / 31,442.56-47,151.72-13,902.76

Finding the Fourth Proportional to 31,442.56, 47,151.72 and 13,902.76

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Solution

The fourth proportional to 31,442.56, 47,151.72 and 13,902.76 is: 20,848.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,442.56 : 47,151.72 = 13,902.76 : x
  2. Step 2: Convert to fraction form
    31,442.56/47,151.72 = 13,902.76/x
  3. Step 3: Cross multiply
    31,442.56x = 47,151.72 × 13,902.76
  4. Step 4: Simplify right side
    31,442.56x = 655,539,046.75
  5. Step 5: Solve for x
    x = 655,539,046.75/31,442.56
  6. Step 6: Final answer
    x = 20,848.78

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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.