Home / 19,986.20-27,581.64-11,034.08

Finding the Fourth Proportional to 19,986.20, 27,581.64 and 11,034.08

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Solution

The fourth proportional to 19,986.20, 27,581.64 and 11,034.08 is: 15,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,986.20 : 27,581.64 = 11,034.08 : x
  2. Step 2: Convert to fraction form
    19,986.20/27,581.64 = 11,034.08/x
  3. Step 3: Cross multiply
    19,986.20x = 27,581.64 × 11,034.08
  4. Step 4: Simplify right side
    19,986.20x = 304,338,022.29
  5. Step 5: Solve for x
    x = 304,338,022.29/19,986.20
  6. Step 6: Final answer
    x = 15,227.41

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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.