Home / 40,880.20-61,305.90-18,704.20

Finding the Fourth Proportional to 40,880.20, 61,305.90 and 18,704.20

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Solution

The fourth proportional to 40,880.20, 61,305.90 and 18,704.20 is: 28,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,880.20 : 61,305.90 = 18,704.20 : x
  2. Step 2: Convert to fraction form
    40,880.20/61,305.90 = 18,704.20/x
  3. Step 3: Cross multiply
    40,880.20x = 61,305.90 × 18,704.20
  4. Step 4: Simplify right side
    40,880.20x = 1,146,677,814.78
  5. Step 5: Solve for x
    x = 1,146,677,814.78/40,880.20
  6. Step 6: Final answer
    x = 28,049.71

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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.