Home / 20,186.76-27,857.52-11,234.28

Finding the Fourth Proportional to 20,186.76, 27,857.52 and 11,234.28

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Solution

The fourth proportional to 20,186.76, 27,857.52 and 11,234.28 is: 15,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.76 : 27,857.52 = 11,234.28 : x
  2. Step 2: Convert to fraction form
    20,186.76/27,857.52 = 11,234.28/x
  3. Step 3: Cross multiply
    20,186.76x = 27,857.52 × 11,234.28
  4. Step 4: Simplify right side
    20,186.76x = 312,959,179.79
  5. Step 5: Solve for x
    x = 312,959,179.79/20,186.76
  6. Step 6: Final answer
    x = 15,503.19

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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.