Home / 19,578.96-27,020.30-11,081.09

Finding the Fourth Proportional to 19,578.96, 27,020.30 and 11,081.09

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Solution

The fourth proportional to 19,578.96, 27,020.30 and 11,081.09 is: 15,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.96 : 27,020.30 = 11,081.09 : x
  2. Step 2: Convert to fraction form
    19,578.96/27,020.30 = 11,081.09/x
  3. Step 3: Cross multiply
    19,578.96x = 27,020.30 × 11,081.09
  4. Step 4: Simplify right side
    19,578.96x = 299,414,185.62
  5. Step 5: Solve for x
    x = 299,414,185.62/19,578.96
  6. Step 6: Final answer
    x = 15,292.65

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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.