Home / 27,843.72-38,422.20-15,268.44

Finding the Fourth Proportional to 27,843.72, 38,422.20 and 15,268.44

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Solution

The fourth proportional to 27,843.72, 38,422.20 and 15,268.44 is: 21,069.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,843.72 : 38,422.20 = 15,268.44 : x
  2. Step 2: Convert to fraction form
    27,843.72/38,422.20 = 15,268.44/x
  3. Step 3: Cross multiply
    27,843.72x = 38,422.20 × 15,268.44
  4. Step 4: Simplify right side
    27,843.72x = 586,647,055.37
  5. Step 5: Solve for x
    x = 586,647,055.37/27,843.72
  6. Step 6: Final answer
    x = 21,069.28

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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.