Home / 21,054.66-29,046.78-12,100.11

Finding the Fourth Proportional to 21,054.66, 29,046.78 and 12,100.11

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Solution

The fourth proportional to 21,054.66, 29,046.78 and 12,100.11 is: 16,693.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.66 : 29,046.78 = 12,100.11 : x
  2. Step 2: Convert to fraction form
    21,054.66/29,046.78 = 12,100.11/x
  3. Step 3: Cross multiply
    21,054.66x = 29,046.78 × 12,100.11
  4. Step 4: Simplify right side
    21,054.66x = 351,469,233.15
  5. Step 5: Solve for x
    x = 351,469,233.15/21,054.66
  6. Step 6: Final answer
    x = 16,693.18

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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.