Home / 19,843.95-27,383.79-10,891.61

Finding the Fourth Proportional to 19,843.95, 27,383.79 and 10,891.61

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Solution

The fourth proportional to 19,843.95, 27,383.79 and 10,891.61 is: 15,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.95 : 27,383.79 = 10,891.61 : x
  2. Step 2: Convert to fraction form
    19,843.95/27,383.79 = 10,891.61/x
  3. Step 3: Cross multiply
    19,843.95x = 27,383.79 × 10,891.61
  4. Step 4: Simplify right side
    19,843.95x = 298,253,424.08
  5. Step 5: Solve for x
    x = 298,253,424.08/19,843.95
  6. Step 6: Final answer
    x = 15,029.94

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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.