Home / 20,204.10-27,882.41-11,129.83

Finding the Fourth Proportional to 20,204.10, 27,882.41 and 11,129.83

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Solution

The fourth proportional to 20,204.10, 27,882.41 and 11,129.83 is: 15,359.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.10 : 27,882.41 = 11,129.83 : x
  2. Step 2: Convert to fraction form
    20,204.10/27,882.41 = 11,129.83/x
  3. Step 3: Cross multiply
    20,204.10x = 27,882.41 × 11,129.83
  4. Step 4: Simplify right side
    20,204.10x = 310,326,357.94
  5. Step 5: Solve for x
    x = 310,326,357.94/20,204.10
  6. Step 6: Final answer
    x = 15,359.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.