Home / 31,393.52-47,102.40-13,850.96

Finding the Fourth Proportional to 31,393.52, 47,102.40 and 13,850.96

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Solution

The fourth proportional to 31,393.52, 47,102.40 and 13,850.96 is: 20,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,393.52 : 47,102.40 = 13,850.96 : x
  2. Step 2: Convert to fraction form
    31,393.52/47,102.40 = 13,850.96/x
  3. Step 3: Cross multiply
    31,393.52x = 47,102.40 × 13,850.96
  4. Step 4: Simplify right side
    31,393.52x = 652,413,458.30
  5. Step 5: Solve for x
    x = 652,413,458.30/31,393.52
  6. Step 6: Final answer
    x = 20,781.79

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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.