Home / 19,843.20-27,382.76-10,890.86

Finding the Fourth Proportional to 19,843.20, 27,382.76 and 10,890.86

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Solution

The fourth proportional to 19,843.20, 27,382.76 and 10,890.86 is: 15,028.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.20 : 27,382.76 = 10,890.86 : x
  2. Step 2: Convert to fraction form
    19,843.20/27,382.76 = 10,890.86/x
  3. Step 3: Cross multiply
    19,843.20x = 27,382.76 × 10,890.86
  4. Step 4: Simplify right side
    19,843.20x = 298,221,655.05
  5. Step 5: Solve for x
    x = 298,221,655.05/19,843.20
  6. Step 6: Final answer
    x = 15,028.91

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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.