Home / 22,371.66-30,874.50-13,419.54

Finding the Fourth Proportional to 22,371.66, 30,874.50 and 13,419.54

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Solution

The fourth proportional to 22,371.66, 30,874.50 and 13,419.54 is: 18,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,371.66 : 30,874.50 = 13,419.54 : x
  2. Step 2: Convert to fraction form
    22,371.66/30,874.50 = 13,419.54/x
  3. Step 3: Cross multiply
    22,371.66x = 30,874.50 × 13,419.54
  4. Step 4: Simplify right side
    22,371.66x = 414,321,587.73
  5. Step 5: Solve for x
    x = 414,321,587.73/22,371.66
  6. Step 6: Final answer
    x = 18,519.93

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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.