Home / 20,149.68-27,807.05-11,197.56

Finding the Fourth Proportional to 20,149.68, 27,807.05 and 11,197.56

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Solution

The fourth proportional to 20,149.68, 27,807.05 and 11,197.56 is: 15,452.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.68 : 27,807.05 = 11,197.56 : x
  2. Step 2: Convert to fraction form
    20,149.68/27,807.05 = 11,197.56/x
  3. Step 3: Cross multiply
    20,149.68x = 27,807.05 × 11,197.56
  4. Step 4: Simplify right side
    20,149.68x = 311,371,110.80
  5. Step 5: Solve for x
    x = 311,371,110.80/20,149.68
  6. Step 6: Final answer
    x = 15,452.91

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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.