Home / 20,144.04-27,797.49-11,191.38

Finding the Fourth Proportional to 20,144.04, 27,797.49 and 11,191.38

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Solution

The fourth proportional to 20,144.04, 27,797.49 and 11,191.38 is: 15,443.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.04 : 27,797.49 = 11,191.38 : x
  2. Step 2: Convert to fraction form
    20,144.04/27,797.49 = 11,191.38/x
  3. Step 3: Cross multiply
    20,144.04x = 27,797.49 × 11,191.38
  4. Step 4: Simplify right side
    20,144.04x = 311,092,273.64
  5. Step 5: Solve for x
    x = 311,092,273.64/20,144.04
  6. Step 6: Final answer
    x = 15,443.39

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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.