Home / 30,872.73-42,604.31-16,725.61

Finding the Fourth Proportional to 30,872.73, 42,604.31 and 16,725.61

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Solution

The fourth proportional to 30,872.73, 42,604.31 and 16,725.61 is: 23,081.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.73 : 42,604.31 = 16,725.61 : x
  2. Step 2: Convert to fraction form
    30,872.73/42,604.31 = 16,725.61/x
  3. Step 3: Cross multiply
    30,872.73x = 42,604.31 × 16,725.61
  4. Step 4: Simplify right side
    30,872.73x = 712,583,073.38
  5. Step 5: Solve for x
    x = 712,583,073.38/30,872.73
  6. Step 6: Final answer
    x = 23,081.31

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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.