Home / 31,305.80-43,201.74-17,158.61

Finding the Fourth Proportional to 31,305.80, 43,201.74 and 17,158.61

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Solution

The fourth proportional to 31,305.80, 43,201.74 and 17,158.61 is: 23,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,305.80 : 43,201.74 = 17,158.61 : x
  2. Step 2: Convert to fraction form
    31,305.80/43,201.74 = 17,158.61/x
  3. Step 3: Cross multiply
    31,305.80x = 43,201.74 × 17,158.61
  4. Step 4: Simplify right side
    31,305.80x = 741,281,591.97
  5. Step 5: Solve for x
    x = 741,281,591.97/31,305.80
  6. Step 6: Final answer
    x = 23,678.73

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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.