Home / 31,311.07-43,209.28-17,163.61

Finding the Fourth Proportional to 31,311.07, 43,209.28 and 17,163.61

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Solution

The fourth proportional to 31,311.07, 43,209.28 and 17,163.61 is: 23,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.07 : 43,209.28 = 17,163.61 : x
  2. Step 2: Convert to fraction form
    31,311.07/43,209.28 = 17,163.61/x
  3. Step 3: Cross multiply
    31,311.07x = 43,209.28 × 17,163.61
  4. Step 4: Simplify right side
    31,311.07x = 741,627,230.30
  5. Step 5: Solve for x
    x = 741,627,230.30/31,311.07
  6. Step 6: Final answer
    x = 23,685.78

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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.