Home / 20,092.42-27,725.68-11,139.76

Finding the Fourth Proportional to 20,092.42, 27,725.68 and 11,139.76

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Solution

The fourth proportional to 20,092.42, 27,725.68 and 11,139.76 is: 15,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.42 : 27,725.68 = 11,139.76 : x
  2. Step 2: Convert to fraction form
    20,092.42/27,725.68 = 11,139.76/x
  3. Step 3: Cross multiply
    20,092.42x = 27,725.68 × 11,139.76
  4. Step 4: Simplify right side
    20,092.42x = 308,857,365.65
  5. Step 5: Solve for x
    x = 308,857,365.65/20,092.42
  6. Step 6: Final answer
    x = 15,371.84

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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.