Home / 29,198.73-40,245.86-20,689.95

Finding the Fourth Proportional to 29,198.73, 40,245.86 and 20,689.95

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Solution

The fourth proportional to 29,198.73, 40,245.86 and 20,689.95 is: 28,517.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,198.73 : 40,245.86 = 20,689.95 : x
  2. Step 2: Convert to fraction form
    29,198.73/40,245.86 = 20,689.95/x
  3. Step 3: Cross multiply
    29,198.73x = 40,245.86 × 20,689.95
  4. Step 4: Simplify right side
    29,198.73x = 832,684,727.66
  5. Step 5: Solve for x
    x = 832,684,727.66/29,198.73
  6. Step 6: Final answer
    x = 28,517.84

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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.