Home / 20,186.16-27,857.52-11,234.16

Finding the Fourth Proportional to 20,186.16, 27,857.52 and 11,234.16

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Solution

The fourth proportional to 20,186.16, 27,857.52 and 11,234.16 is: 15,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.16 : 27,857.52 = 11,234.16 : x
  2. Step 2: Convert to fraction form
    20,186.16/27,857.52 = 11,234.16/x
  3. Step 3: Cross multiply
    20,186.16x = 27,857.52 × 11,234.16
  4. Step 4: Simplify right side
    20,186.16x = 312,955,836.88
  5. Step 5: Solve for x
    x = 312,955,836.88/20,186.16
  6. Step 6: Final answer
    x = 15,503.49

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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.