Home / 28,203.15-38,910.04-16,872.97

Finding the Fourth Proportional to 28,203.15, 38,910.04 and 16,872.97

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Solution

The fourth proportional to 28,203.15, 38,910.04 and 16,872.97 is: 23,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,203.15 : 38,910.04 = 16,872.97 : x
  2. Step 2: Convert to fraction form
    28,203.15/38,910.04 = 16,872.97/x
  3. Step 3: Cross multiply
    28,203.15x = 38,910.04 × 16,872.97
  4. Step 4: Simplify right side
    28,203.15x = 656,527,937.62
  5. Step 5: Solve for x
    x = 656,527,937.62/28,203.15
  6. Step 6: Final answer
    x = 23,278.53

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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.