Home / 20,592.12-30,876.46-8,105.37

Finding the Fourth Proportional to 20,592.12, 30,876.46 and 8,105.37

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Solution

The fourth proportional to 20,592.12, 30,876.46 and 8,105.37 is: 12,153.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,592.12 : 30,876.46 = 8,105.37 : x
  2. Step 2: Convert to fraction form
    20,592.12/30,876.46 = 8,105.37/x
  3. Step 3: Cross multiply
    20,592.12x = 30,876.46 × 8,105.37
  4. Step 4: Simplify right side
    20,592.12x = 250,265,152.85
  5. Step 5: Solve for x
    x = 250,265,152.85/20,592.12
  6. Step 6: Final answer
    x = 12,153.45

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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.