Home / 19,974.78-27,568.80-11,591.28

Finding the Fourth Proportional to 19,974.78, 27,568.80 and 11,591.28

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Solution

The fourth proportional to 19,974.78, 27,568.80 and 11,591.28 is: 15,998.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,974.78 : 27,568.80 = 11,591.28 : x
  2. Step 2: Convert to fraction form
    19,974.78/27,568.80 = 11,591.28/x
  3. Step 3: Cross multiply
    19,974.78x = 27,568.80 × 11,591.28
  4. Step 4: Simplify right side
    19,974.78x = 319,557,680.06
  5. Step 5: Solve for x
    x = 319,557,680.06/19,974.78
  6. Step 6: Final answer
    x = 15,998.06

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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.