Home / 20,351.86-30,517.31-12,034.42

Finding the Fourth Proportional to 20,351.86, 30,517.31 and 12,034.42

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Solution

The fourth proportional to 20,351.86, 30,517.31 and 12,034.42 is: 18,045.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.86 : 30,517.31 = 12,034.42 : x
  2. Step 2: Convert to fraction form
    20,351.86/30,517.31 = 12,034.42/x
  3. Step 3: Cross multiply
    20,351.86x = 30,517.31 × 12,034.42
  4. Step 4: Simplify right side
    20,351.86x = 367,258,183.57
  5. Step 5: Solve for x
    x = 367,258,183.57/20,351.86
  6. Step 6: Final answer
    x = 18,045.44

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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.