Home / 36,780.40-55,120.56-19,213.84

Finding the Fourth Proportional to 36,780.40, 55,120.56 and 19,213.84

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Solution

The fourth proportional to 36,780.40, 55,120.56 and 19,213.84 is: 28,794.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,780.40 : 55,120.56 = 19,213.84 : x
  2. Step 2: Convert to fraction form
    36,780.40/55,120.56 = 19,213.84/x
  3. Step 3: Cross multiply
    36,780.40x = 55,120.56 × 19,213.84
  4. Step 4: Simplify right side
    36,780.40x = 1,059,077,620.55
  5. Step 5: Solve for x
    x = 1,059,077,620.55/36,780.40
  6. Step 6: Final answer
    x = 28,794.62

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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.