Home / 22,729.28-31,367.84-12,793.92

Finding the Fourth Proportional to 22,729.28, 31,367.84 and 12,793.92

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Solution

The fourth proportional to 22,729.28, 31,367.84 and 12,793.92 is: 17,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.28 : 31,367.84 = 12,793.92 : x
  2. Step 2: Convert to fraction form
    22,729.28/31,367.84 = 12,793.92/x
  3. Step 3: Cross multiply
    22,729.28x = 31,367.84 × 12,793.92
  4. Step 4: Simplify right side
    22,729.28x = 401,317,635.53
  5. Step 5: Solve for x
    x = 401,317,635.53/22,729.28
  6. Step 6: Final answer
    x = 17,656.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.