Home / 20,155.92-27,814.68-11,204.22

Finding the Fourth Proportional to 20,155.92, 27,814.68 and 11,204.22

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Solution

The fourth proportional to 20,155.92, 27,814.68 and 11,204.22 is: 15,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.92 : 27,814.68 = 11,204.22 : x
  2. Step 2: Convert to fraction form
    20,155.92/27,814.68 = 11,204.22/x
  3. Step 3: Cross multiply
    20,155.92x = 27,814.68 × 11,204.22
  4. Step 4: Simplify right side
    20,155.92x = 311,641,793.95
  5. Step 5: Solve for x
    x = 311,641,793.95/20,155.92
  6. Step 6: Final answer
    x = 15,461.55

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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.