Home / 20,747.89-28,634.51-11,796.73

Finding the Fourth Proportional to 20,747.89, 28,634.51 and 11,796.73

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Solution

The fourth proportional to 20,747.89, 28,634.51 and 11,796.73 is: 16,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,747.89 : 28,634.51 = 11,796.73 : x
  2. Step 2: Convert to fraction form
    20,747.89/28,634.51 = 11,796.73/x
  3. Step 3: Cross multiply
    20,747.89x = 28,634.51 × 11,796.73
  4. Step 4: Simplify right side
    20,747.89x = 337,793,583.15
  5. Step 5: Solve for x
    x = 337,793,583.15/20,747.89
  6. Step 6: Final answer
    x = 16,280.86

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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.