Home / 41,218.71-61,782.96-21,229.41

Finding the Fourth Proportional to 41,218.71, 61,782.96 and 21,229.41

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Solution

The fourth proportional to 41,218.71, 61,782.96 and 21,229.41 is: 31,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,218.71 : 61,782.96 = 21,229.41 : x
  2. Step 2: Convert to fraction form
    41,218.71/61,782.96 = 21,229.41/x
  3. Step 3: Cross multiply
    41,218.71x = 61,782.96 × 21,229.41
  4. Step 4: Simplify right side
    41,218.71x = 1,311,615,788.85
  5. Step 5: Solve for x
    x = 1,311,615,788.85/41,218.71
  6. Step 6: Final answer
    x = 31,820.88

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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.