Home / 20,695.20-31,043.94-5,902.98

Finding the Fourth Proportional to 20,695.20, 31,043.94 and 5,902.98

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Solution

The fourth proportional to 20,695.20, 31,043.94 and 5,902.98 is: 8,854.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.20 : 31,043.94 = 5,902.98 : x
  2. Step 2: Convert to fraction form
    20,695.20/31,043.94 = 5,902.98/x
  3. Step 3: Cross multiply
    20,695.20x = 31,043.94 × 5,902.98
  4. Step 4: Simplify right side
    20,695.20x = 183,251,601.72
  5. Step 5: Solve for x
    x = 183,251,601.72/20,695.20
  6. Step 6: Final answer
    x = 8,854.79

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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.