Home / 20,100.12-27,732.06-11,713.56

Finding the Fourth Proportional to 20,100.12, 27,732.06 and 11,713.56

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Solution

The fourth proportional to 20,100.12, 27,732.06 and 11,713.56 is: 16,161.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.12 : 27,732.06 = 11,713.56 : x
  2. Step 2: Convert to fraction form
    20,100.12/27,732.06 = 11,713.56/x
  3. Step 3: Cross multiply
    20,100.12x = 27,732.06 × 11,713.56
  4. Step 4: Simplify right side
    20,100.12x = 324,841,148.73
  5. Step 5: Solve for x
    x = 324,841,148.73/20,100.12
  6. Step 6: Final answer
    x = 16,161.15

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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.