Home / 31,311.30-43,210.18-17,163.30

Finding the Fourth Proportional to 31,311.30, 43,210.18 and 17,163.30

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Solution

The fourth proportional to 31,311.30, 43,210.18 and 17,163.30 is: 23,685.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.30 : 43,210.18 = 17,163.30 : x
  2. Step 2: Convert to fraction form
    31,311.30/43,210.18 = 17,163.30/x
  3. Step 3: Cross multiply
    31,311.30x = 43,210.18 × 17,163.30
  4. Step 4: Simplify right side
    31,311.30x = 741,629,282.39
  5. Step 5: Solve for x
    x = 741,629,282.39/31,311.30
  6. Step 6: Final answer
    x = 23,685.68

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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.