Home / 36,236.80-54,360.60-12,861.28

Finding the Fourth Proportional to 36,236.80, 54,360.60 and 12,861.28

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Solution

The fourth proportional to 36,236.80, 54,360.60 and 12,861.28 is: 19,293.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,236.80 : 54,360.60 = 12,861.28 : x
  2. Step 2: Convert to fraction form
    36,236.80/54,360.60 = 12,861.28/x
  3. Step 3: Cross multiply
    36,236.80x = 54,360.60 × 12,861.28
  4. Step 4: Simplify right side
    36,236.80x = 699,146,897.57
  5. Step 5: Solve for x
    x = 699,146,897.57/36,236.80
  6. Step 6: Final answer
    x = 19,293.84

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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.