Home / 21,022.04-31,517.25-9,922.41

Finding the Fourth Proportional to 21,022.04, 31,517.25 and 9,922.41

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Solution

The fourth proportional to 21,022.04, 31,517.25 and 9,922.41 is: 14,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,022.04 : 31,517.25 = 9,922.41 : x
  2. Step 2: Convert to fraction form
    21,022.04/31,517.25 = 9,922.41/x
  3. Step 3: Cross multiply
    21,022.04x = 31,517.25 × 9,922.41
  4. Step 4: Simplify right side
    21,022.04x = 312,727,076.57
  5. Step 5: Solve for x
    x = 312,727,076.57/21,022.04
  6. Step 6: Final answer
    x = 14,876.16

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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.