Home / 39,578.20-54,619.22-21,673.96

Finding the Fourth Proportional to 39,578.20, 54,619.22 and 21,673.96

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Solution

The fourth proportional to 39,578.20, 54,619.22 and 21,673.96 is: 29,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,578.20 : 54,619.22 = 21,673.96 : x
  2. Step 2: Convert to fraction form
    39,578.20/54,619.22 = 21,673.96/x
  3. Step 3: Cross multiply
    39,578.20x = 54,619.22 × 21,673.96
  4. Step 4: Simplify right side
    39,578.20x = 1,183,814,789.51
  5. Step 5: Solve for x
    x = 1,183,814,789.51/39,578.20
  6. Step 6: Final answer
    x = 29,910.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.