Home / 22,716.60-31,348.68-12,644.88

Finding the Fourth Proportional to 22,716.60, 31,348.68 and 12,644.88

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Solution

The fourth proportional to 22,716.60, 31,348.68 and 12,644.88 is: 17,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.60 : 31,348.68 = 12,644.88 : x
  2. Step 2: Convert to fraction form
    22,716.60/31,348.68 = 12,644.88/x
  3. Step 3: Cross multiply
    22,716.60x = 31,348.68 × 12,644.88
  4. Step 4: Simplify right side
    22,716.60x = 396,400,296.76
  5. Step 5: Solve for x
    x = 396,400,296.76/22,716.60
  6. Step 6: Final answer
    x = 17,449.81

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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.