Home / 20,131.17-30,198.83-5,340.11

Finding the Fourth Proportional to 20,131.17, 30,198.83 and 5,340.11

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Solution

The fourth proportional to 20,131.17, 30,198.83 and 5,340.11 is: 8,010.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,131.17 : 30,198.83 = 5,340.11 : x
  2. Step 2: Convert to fraction form
    20,131.17/30,198.83 = 5,340.11/x
  3. Step 3: Cross multiply
    20,131.17x = 30,198.83 × 5,340.11
  4. Step 4: Simplify right side
    20,131.17x = 161,264,896.38
  5. Step 5: Solve for x
    x = 161,264,896.38/20,131.17
  6. Step 6: Final answer
    x = 8,010.71

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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.