Home / 21,324.25-31,986.38-5,741.88

Finding the Fourth Proportional to 21,324.25, 31,986.38 and 5,741.88

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Solution

The fourth proportional to 21,324.25, 31,986.38 and 5,741.88 is: 8,612.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.25 : 31,986.38 = 5,741.88 : x
  2. Step 2: Convert to fraction form
    21,324.25/31,986.38 = 5,741.88/x
  3. Step 3: Cross multiply
    21,324.25x = 31,986.38 × 5,741.88
  4. Step 4: Simplify right side
    21,324.25x = 183,661,955.59
  5. Step 5: Solve for x
    x = 183,661,955.59/21,324.25
  6. Step 6: Final answer
    x = 8,612.82

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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.