Home / 20,191.92-30,287.61-5,198.96

Finding the Fourth Proportional to 20,191.92, 30,287.61 and 5,198.96

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Solution

The fourth proportional to 20,191.92, 30,287.61 and 5,198.96 is: 7,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.92 : 30,287.61 = 5,198.96 : x
  2. Step 2: Convert to fraction form
    20,191.92/30,287.61 = 5,198.96/x
  3. Step 3: Cross multiply
    20,191.92x = 30,287.61 × 5,198.96
  4. Step 4: Simplify right side
    20,191.92x = 157,463,921.45
  5. Step 5: Solve for x
    x = 157,463,921.45/20,191.92
  6. Step 6: Final answer
    x = 7,798.36

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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.