Home / 40,869.70-61,273.38-21,135.66

Finding the Fourth Proportional to 40,869.70, 61,273.38 and 21,135.66

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Solution

The fourth proportional to 40,869.70, 61,273.38 and 21,135.66 is: 31,687.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,869.70 : 61,273.38 = 21,135.66 : x
  2. Step 2: Convert to fraction form
    40,869.70/61,273.38 = 21,135.66/x
  3. Step 3: Cross multiply
    40,869.70x = 61,273.38 × 21,135.66
  4. Step 4: Simplify right side
    40,869.70x = 1,295,053,326.73
  5. Step 5: Solve for x
    x = 1,295,053,326.73/40,869.70
  6. Step 6: Final answer
    x = 31,687.37

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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.