Home / 21,772.66-30,046.13-11,836.66

Finding the Fourth Proportional to 21,772.66, 30,046.13 and 11,836.66

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Solution

The fourth proportional to 21,772.66, 30,046.13 and 11,836.66 is: 16,334.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,772.66 : 30,046.13 = 11,836.66 : x
  2. Step 2: Convert to fraction form
    21,772.66/30,046.13 = 11,836.66/x
  3. Step 3: Cross multiply
    21,772.66x = 30,046.13 × 11,836.66
  4. Step 4: Simplify right side
    21,772.66x = 355,645,825.13
  5. Step 5: Solve for x
    x = 355,645,825.13/21,772.66
  6. Step 6: Final answer
    x = 16,334.51

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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.