Home / 20,579.48-30,876.62-8,092.58

Finding the Fourth Proportional to 20,579.48, 30,876.62 and 8,092.58

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Solution

The fourth proportional to 20,579.48, 30,876.62 and 8,092.58 is: 12,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.48 : 30,876.62 = 8,092.58 : x
  2. Step 2: Convert to fraction form
    20,579.48/30,876.62 = 8,092.58/x
  3. Step 3: Cross multiply
    20,579.48x = 30,876.62 × 8,092.58
  4. Step 4: Simplify right side
    20,579.48x = 249,871,517.48
  5. Step 5: Solve for x
    x = 249,871,517.48/20,579.48
  6. Step 6: Final answer
    x = 12,141.78

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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.