Home / 31,651.60-43,660.52-19,716.88

Finding the Fourth Proportional to 31,651.60, 43,660.52 and 19,716.88

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Solution

The fourth proportional to 31,651.60, 43,660.52 and 19,716.88 is: 27,197.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,651.60 : 43,660.52 = 19,716.88 : x
  2. Step 2: Convert to fraction form
    31,651.60/43,660.52 = 19,716.88/x
  3. Step 3: Cross multiply
    31,651.60x = 43,660.52 × 19,716.88
  4. Step 4: Simplify right side
    31,651.60x = 860,849,233.58
  5. Step 5: Solve for x
    x = 860,849,233.58/31,651.60
  6. Step 6: Final answer
    x = 27,197.65

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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.