Home / 20,290.46-30,414.11-11,974.37

Finding the Fourth Proportional to 20,290.46, 30,414.11 and 11,974.37

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Solution

The fourth proportional to 20,290.46, 30,414.11 and 11,974.37 is: 17,948.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,290.46 : 30,414.11 = 11,974.37 : x
  2. Step 2: Convert to fraction form
    20,290.46/30,414.11 = 11,974.37/x
  3. Step 3: Cross multiply
    20,290.46x = 30,414.11 × 11,974.37
  4. Step 4: Simplify right side
    20,290.46x = 364,189,594.42
  5. Step 5: Solve for x
    x = 364,189,594.42/20,290.46
  6. Step 6: Final answer
    x = 17,948.81

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1.5x scale

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.