Home / 31,589.30-43,593.20-18,163.18

Finding the Fourth Proportional to 31,589.30, 43,593.20 and 18,163.18

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Solution

The fourth proportional to 31,589.30, 43,593.20 and 18,163.18 is: 25,065.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.30 : 43,593.20 = 18,163.18 : x
  2. Step 2: Convert to fraction form
    31,589.30/43,593.20 = 18,163.18/x
  3. Step 3: Cross multiply
    31,589.30x = 43,593.20 × 18,163.18
  4. Step 4: Simplify right side
    31,589.30x = 791,790,965.82
  5. Step 5: Solve for x
    x = 791,790,965.82/31,589.30
  6. Step 6: Final answer
    x = 25,065.17

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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.