Home / 19,843.05-27,383.75-10,891.39

Finding the Fourth Proportional to 19,843.05, 27,383.75 and 10,891.39

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Solution

The fourth proportional to 19,843.05, 27,383.75 and 10,891.39 is: 15,030.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.05 : 27,383.75 = 10,891.39 : x
  2. Step 2: Convert to fraction form
    19,843.05/27,383.75 = 10,891.39/x
  3. Step 3: Cross multiply
    19,843.05x = 27,383.75 × 10,891.39
  4. Step 4: Simplify right side
    19,843.05x = 298,247,100.91
  5. Step 5: Solve for x
    x = 298,247,100.91/19,843.05
  6. Step 6: Final answer
    x = 15,030.31

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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.