Home / 19,986.88-27,581.17-11,034.19

Finding the Fourth Proportional to 19,986.88, 27,581.17 and 11,034.19

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Solution

The fourth proportional to 19,986.88, 27,581.17 and 11,034.19 is: 15,226.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.88 : 27,581.17 = 11,034.19 : x
  2. Step 2: Convert to fraction form
    19,986.88/27,581.17 = 11,034.19/x
  3. Step 3: Cross multiply
    19,986.88x = 27,581.17 × 11,034.19
  4. Step 4: Simplify right side
    19,986.88x = 304,335,870.20
  5. Step 5: Solve for x
    x = 304,335,870.20/19,986.88
  6. Step 6: Final answer
    x = 15,226.78

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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.