Home / 16,761.89-25,142.48-4,281.92

Finding the Fourth Proportional to 16,761.89, 25,142.48 and 4,281.92

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Solution

The fourth proportional to 16,761.89, 25,142.48 and 4,281.92 is: 6,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,761.89 : 25,142.48 = 4,281.92 : x
  2. Step 2: Convert to fraction form
    16,761.89/25,142.48 = 4,281.92/x
  3. Step 3: Cross multiply
    16,761.89x = 25,142.48 × 4,281.92
  4. Step 4: Simplify right side
    16,761.89x = 107,657,940.84
  5. Step 5: Solve for x
    x = 107,657,940.84/16,761.89
  6. Step 6: Final answer
    x = 6,422.78

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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.