Home / 20,193.66-27,868.05-11,240.82

Finding the Fourth Proportional to 20,193.66, 27,868.05 and 11,240.82

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Solution

The fourth proportional to 20,193.66, 27,868.05 and 11,240.82 is: 15,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.66 : 27,868.05 = 11,240.82 : x
  2. Step 2: Convert to fraction form
    20,193.66/27,868.05 = 11,240.82/x
  3. Step 3: Cross multiply
    20,193.66x = 27,868.05 × 11,240.82
  4. Step 4: Simplify right side
    20,193.66x = 313,259,733.80
  5. Step 5: Solve for x
    x = 313,259,733.80/20,193.66
  6. Step 6: Final answer
    x = 15,512.78

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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.