Home / 28,424.97-39,229.80-16,329.78

Finding the Fourth Proportional to 28,424.97, 39,229.80 and 16,329.78

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Solution

The fourth proportional to 28,424.97, 39,229.80 and 16,329.78 is: 22,537.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.97 : 39,229.80 = 16,329.78 : x
  2. Step 2: Convert to fraction form
    28,424.97/39,229.80 = 16,329.78/x
  3. Step 3: Cross multiply
    28,424.97x = 39,229.80 × 16,329.78
  4. Step 4: Simplify right side
    28,424.97x = 640,614,003.44
  5. Step 5: Solve for x
    x = 640,614,003.44/28,424.97
  6. Step 6: Final answer
    x = 22,537.02

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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.