Home / 20,093.24-27,728.20-11,140.66

Finding the Fourth Proportional to 20,093.24, 27,728.20 and 11,140.66

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Solution

The fourth proportional to 20,093.24, 27,728.20 and 11,140.66 is: 15,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.24 : 27,728.20 = 11,140.66 : x
  2. Step 2: Convert to fraction form
    20,093.24/27,728.20 = 11,140.66/x
  3. Step 3: Cross multiply
    20,093.24x = 27,728.20 × 11,140.66
  4. Step 4: Simplify right side
    20,093.24x = 308,910,448.61
  5. Step 5: Solve for x
    x = 308,910,448.61/20,093.24
  6. Step 6: Final answer
    x = 15,373.85

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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.