Home / 21,930.62-32,872.43-15,671.68

Finding the Fourth Proportional to 21,930.62, 32,872.43 and 15,671.68

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Solution

The fourth proportional to 21,930.62, 32,872.43 and 15,671.68 is: 23,490.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930.62 : 32,872.43 = 15,671.68 : x
  2. Step 2: Convert to fraction form
    21,930.62/32,872.43 = 15,671.68/x
  3. Step 3: Cross multiply
    21,930.62x = 32,872.43 × 15,671.68
  4. Step 4: Simplify right side
    21,930.62x = 515,166,160.78
  5. Step 5: Solve for x
    x = 515,166,160.78/21,930.62
  6. Step 6: Final answer
    x = 23,490.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.