Home / 20,082.96-30,102.66-8,974.35

Finding the Fourth Proportional to 20,082.96, 30,102.66 and 8,974.35

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Solution

The fourth proportional to 20,082.96, 30,102.66 and 8,974.35 is: 13,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.96 : 30,102.66 = 8,974.35 : x
  2. Step 2: Convert to fraction form
    20,082.96/30,102.66 = 8,974.35/x
  3. Step 3: Cross multiply
    20,082.96x = 30,102.66 × 8,974.35
  4. Step 4: Simplify right side
    20,082.96x = 270,151,806.77
  5. Step 5: Solve for x
    x = 270,151,806.77/20,082.96
  6. Step 6: Final answer
    x = 13,451.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.