Home / 20,147.27-27,800.72-11,194.13

Finding the Fourth Proportional to 20,147.27, 27,800.72 and 11,194.13

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Solution

The fourth proportional to 20,147.27, 27,800.72 and 11,194.13 is: 15,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.27 : 27,800.72 = 11,194.13 : x
  2. Step 2: Convert to fraction form
    20,147.27/27,800.72 = 11,194.13/x
  3. Step 3: Cross multiply
    20,147.27x = 27,800.72 × 11,194.13
  4. Step 4: Simplify right side
    20,147.27x = 311,204,929.28
  5. Step 5: Solve for x
    x = 311,204,929.28/20,147.27
  6. Step 6: Final answer
    x = 15,446.51

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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.