Home / 22,729.73-31,364.78-12,659.11

Finding the Fourth Proportional to 22,729.73, 31,364.78 and 12,659.11

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Solution

The fourth proportional to 22,729.73, 31,364.78 and 12,659.11 is: 17,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,729.73 : 31,364.78 = 12,659.11 : x
  2. Step 2: Convert to fraction form
    22,729.73/31,364.78 = 12,659.11/x
  3. Step 3: Cross multiply
    22,729.73x = 31,364.78 × 12,659.11
  4. Step 4: Simplify right side
    22,729.73x = 397,050,167.91
  5. Step 5: Solve for x
    x = 397,050,167.91/22,729.73
  6. Step 6: Final answer
    x = 17,468.32

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Half scale
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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.