Home / 19,987.05-27,581.58-11,034.39

Finding the Fourth Proportional to 19,987.05, 27,581.58 and 11,034.39

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Solution

The fourth proportional to 19,987.05, 27,581.58 and 11,034.39 is: 15,227.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987.05 : 27,581.58 = 11,034.39 : x
  2. Step 2: Convert to fraction form
    19,987.05/27,581.58 = 11,034.39/x
  3. Step 3: Cross multiply
    19,987.05x = 27,581.58 × 11,034.39
  4. Step 4: Simplify right side
    19,987.05x = 304,345,910.54
  5. Step 5: Solve for x
    x = 304,345,910.54/19,987.05
  6. Step 6: Final answer
    x = 15,227.16

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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.