Home / 20,496.38-30,757.39-8,809.56

Finding the Fourth Proportional to 20,496.38, 30,757.39 and 8,809.56

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Solution

The fourth proportional to 20,496.38, 30,757.39 and 8,809.56 is: 13,219.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,496.38 : 30,757.39 = 8,809.56 : x
  2. Step 2: Convert to fraction form
    20,496.38/30,757.39 = 8,809.56/x
  3. Step 3: Cross multiply
    20,496.38x = 30,757.39 × 8,809.56
  4. Step 4: Simplify right side
    20,496.38x = 270,959,050.62
  5. Step 5: Solve for x
    x = 270,959,050.62/20,496.38
  6. Step 6: Final answer
    x = 13,219.85

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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.