Home / 21,910.68-30,236.10-12,351.14

Finding the Fourth Proportional to 21,910.68, 30,236.10 and 12,351.14

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Solution

The fourth proportional to 21,910.68, 30,236.10 and 12,351.14 is: 17,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910.68 : 30,236.10 = 12,351.14 : x
  2. Step 2: Convert to fraction form
    21,910.68/30,236.10 = 12,351.14/x
  3. Step 3: Cross multiply
    21,910.68x = 30,236.10 × 12,351.14
  4. Step 4: Simplify right side
    21,910.68x = 373,450,304.15
  5. Step 5: Solve for x
    x = 373,450,304.15/21,910.68
  6. Step 6: Final answer
    x = 17,044.21

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1.5x scale

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.