Home / 28,115.94-38,800.04-16,179.04

Finding the Fourth Proportional to 28,115.94, 38,800.04 and 16,179.04

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Solution

The fourth proportional to 28,115.94, 38,800.04 and 16,179.04 is: 22,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,115.94 : 38,800.04 = 16,179.04 : x
  2. Step 2: Convert to fraction form
    28,115.94/38,800.04 = 16,179.04/x
  3. Step 3: Cross multiply
    28,115.94x = 38,800.04 × 16,179.04
  4. Step 4: Simplify right side
    28,115.94x = 627,747,399.16
  5. Step 5: Solve for x
    x = 627,747,399.16/28,115.94
  6. Step 6: Final answer
    x = 22,327.10

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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.