Home / 22,163.22-30,589.20-13,211.30

Finding the Fourth Proportional to 22,163.22, 30,589.20 and 13,211.30

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Solution

The fourth proportional to 22,163.22, 30,589.20 and 13,211.30 is: 18,233.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.22 : 30,589.20 = 13,211.30 : x
  2. Step 2: Convert to fraction form
    22,163.22/30,589.20 = 13,211.30/x
  3. Step 3: Cross multiply
    22,163.22x = 30,589.20 × 13,211.30
  4. Step 4: Simplify right side
    22,163.22x = 404,122,945.01
  5. Step 5: Solve for x
    x = 404,122,945.01/22,163.22
  6. Step 6: Final answer
    x = 18,233.95

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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.