Home / 39,617.20-54,671.51-21,712.96

Finding the Fourth Proportional to 39,617.20, 54,671.51 and 21,712.96

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Solution

The fourth proportional to 39,617.20, 54,671.51 and 21,712.96 is: 29,963.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.20 : 54,671.51 = 21,712.96 : x
  2. Step 2: Convert to fraction form
    39,617.20/54,671.51 = 21,712.96/x
  3. Step 3: Cross multiply
    39,617.20x = 54,671.51 × 21,712.96
  4. Step 4: Simplify right side
    39,617.20x = 1,187,080,310.26
  5. Step 5: Solve for x
    x = 1,187,080,310.26/39,617.20
  6. Step 6: Final answer
    x = 29,963.76

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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.