Home / 22,361.52-30,858.66-12,929.88

Finding the Fourth Proportional to 22,361.52, 30,858.66 and 12,929.88

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Solution

The fourth proportional to 22,361.52, 30,858.66 and 12,929.88 is: 17,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,361.52 : 30,858.66 = 12,929.88 : x
  2. Step 2: Convert to fraction form
    22,361.52/30,858.66 = 12,929.88/x
  3. Step 3: Cross multiply
    22,361.52x = 30,858.66 × 12,929.88
  4. Step 4: Simplify right side
    22,361.52x = 398,998,770.76
  5. Step 5: Solve for x
    x = 398,998,770.76/22,361.52
  6. Step 6: Final answer
    x = 17,843.10

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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.