Home / 20,092.20-27,727.44-11,139.84

Finding the Fourth Proportional to 20,092.20, 27,727.44 and 11,139.84

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Solution

The fourth proportional to 20,092.20, 27,727.44 and 11,139.84 is: 15,373.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.20 : 27,727.44 = 11,139.84 : x
  2. Step 2: Convert to fraction form
    20,092.20/27,727.44 = 11,139.84/x
  3. Step 3: Cross multiply
    20,092.20x = 27,727.44 × 11,139.84
  4. Step 4: Simplify right side
    20,092.20x = 308,879,245.21
  5. Step 5: Solve for x
    x = 308,879,245.21/20,092.20
  6. Step 6: Final answer
    x = 15,373.09

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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.