Home / 20,092.72-27,727.82-11,140.22

Finding the Fourth Proportional to 20,092.72, 27,727.82 and 11,140.22

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Solution

The fourth proportional to 20,092.72, 27,727.82 and 11,140.22 is: 15,373.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.72 : 27,727.82 = 11,140.22 : x
  2. Step 2: Convert to fraction form
    20,092.72/27,727.82 = 11,140.22/x
  3. Step 3: Cross multiply
    20,092.72x = 27,727.82 × 11,140.22
  4. Step 4: Simplify right side
    20,092.72x = 308,894,028.54
  5. Step 5: Solve for x
    x = 308,894,028.54/20,092.72
  6. Step 6: Final answer
    x = 15,373.43

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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.