Home / 21,628.97-32,440.65-6,839.38

Finding the Fourth Proportional to 21,628.97, 32,440.65 and 6,839.38

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Solution

The fourth proportional to 21,628.97, 32,440.65 and 6,839.38 is: 10,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,628.97 : 32,440.65 = 6,839.38 : x
  2. Step 2: Convert to fraction form
    21,628.97/32,440.65 = 6,839.38/x
  3. Step 3: Cross multiply
    21,628.97x = 32,440.65 × 6,839.38
  4. Step 4: Simplify right side
    21,628.97x = 221,873,932.80
  5. Step 5: Solve for x
    x = 221,873,932.80/21,628.97
  6. Step 6: Final answer
    x = 10,258.18

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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.