Home / 22,163.43-30,581.34-13,211.76

Finding the Fourth Proportional to 22,163.43, 30,581.34 and 13,211.76

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Solution

The fourth proportional to 22,163.43, 30,581.34 and 13,211.76 is: 18,229.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,163.43 : 30,581.34 = 13,211.76 : x
  2. Step 2: Convert to fraction form
    22,163.43/30,581.34 = 13,211.76/x
  3. Step 3: Cross multiply
    22,163.43x = 30,581.34 × 13,211.76
  4. Step 4: Simplify right side
    22,163.43x = 404,033,434.04
  5. Step 5: Solve for x
    x = 404,033,434.04/22,163.43
  6. Step 6: Final answer
    x = 18,229.74

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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.