Home / 31,311.56-43,209.78-17,163.92

Finding the Fourth Proportional to 31,311.56, 43,209.78 and 17,163.92

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Solution

The fourth proportional to 31,311.56, 43,209.78 and 17,163.92 is: 23,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.56 : 43,209.78 = 17,163.92 : x
  2. Step 2: Convert to fraction form
    31,311.56/43,209.78 = 17,163.92/x
  3. Step 3: Cross multiply
    31,311.56x = 43,209.78 × 17,163.92
  4. Step 4: Simplify right side
    31,311.56x = 741,649,207.14
  5. Step 5: Solve for x
    x = 741,649,207.14/31,311.56
  6. Step 6: Final answer
    x = 23,686.11

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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.