Home / 21,512.43-32,268.24-6,721.29

Finding the Fourth Proportional to 21,512.43, 32,268.24 and 6,721.29

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Solution

The fourth proportional to 21,512.43, 32,268.24 and 6,721.29 is: 10,081.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,512.43 : 32,268.24 = 6,721.29 : x
  2. Step 2: Convert to fraction form
    21,512.43/32,268.24 = 6,721.29/x
  3. Step 3: Cross multiply
    21,512.43x = 32,268.24 × 6,721.29
  4. Step 4: Simplify right side
    21,512.43x = 216,884,198.83
  5. Step 5: Solve for x
    x = 216,884,198.83/21,512.43
  6. Step 6: Final answer
    x = 10,081.81

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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.