Home / 41,012.66-61,520.70-21,278.54

Finding the Fourth Proportional to 41,012.66, 61,520.70 and 21,278.54

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Solution

The fourth proportional to 41,012.66, 61,520.70 and 21,278.54 is: 31,918.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,012.66 : 61,520.70 = 21,278.54 : x
  2. Step 2: Convert to fraction form
    41,012.66/61,520.70 = 21,278.54/x
  3. Step 3: Cross multiply
    41,012.66x = 61,520.70 × 21,278.54
  4. Step 4: Simplify right side
    41,012.66x = 1,309,070,675.78
  5. Step 5: Solve for x
    x = 1,309,070,675.78/41,012.66
  6. Step 6: Final answer
    x = 31,918.70

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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.