Home / 39,443.22-54,432.09-21,538.44

Finding the Fourth Proportional to 39,443.22, 54,432.09 and 21,538.44

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Solution

The fourth proportional to 39,443.22, 54,432.09 and 21,538.44 is: 29,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.22 : 54,432.09 = 21,538.44 : x
  2. Step 2: Convert to fraction form
    39,443.22/54,432.09 = 21,538.44/x
  3. Step 3: Cross multiply
    39,443.22x = 54,432.09 × 21,538.44
  4. Step 4: Simplify right side
    39,443.22x = 1,172,382,304.54
  5. Step 5: Solve for x
    x = 1,172,382,304.54/39,443.22
  6. Step 6: Final answer
    x = 29,723.29

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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.