Home / 20,195.88-30,267.60-11,310.84

Finding the Fourth Proportional to 20,195.88, 30,267.60 and 11,310.84

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Solution

The fourth proportional to 20,195.88, 30,267.60 and 11,310.84 is: 16,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.88 : 30,267.60 = 11,310.84 : x
  2. Step 2: Convert to fraction form
    20,195.88/30,267.60 = 11,310.84/x
  3. Step 3: Cross multiply
    20,195.88x = 30,267.60 × 11,310.84
  4. Step 4: Simplify right side
    20,195.88x = 342,351,980.78
  5. Step 5: Solve for x
    x = 342,351,980.78/20,195.88
  6. Step 6: Final answer
    x = 16,951.58

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1.5x scale

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.