Home / 19,843.86-27,382.80-10,891.35

Finding the Fourth Proportional to 19,843.86, 27,382.80 and 10,891.35

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Solution

The fourth proportional to 19,843.86, 27,382.80 and 10,891.35 is: 15,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.86 : 27,382.80 = 10,891.35 : x
  2. Step 2: Convert to fraction form
    19,843.86/27,382.80 = 10,891.35/x
  3. Step 3: Cross multiply
    19,843.86x = 27,382.80 × 10,891.35
  4. Step 4: Simplify right side
    19,843.86x = 298,235,658.78
  5. Step 5: Solve for x
    x = 298,235,658.78/19,843.86
  6. Step 6: Final answer
    x = 15,029.12

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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.