Home / 22,049.46-30,429.81-12,618.90

Finding the Fourth Proportional to 22,049.46, 30,429.81 and 12,618.90

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Solution

The fourth proportional to 22,049.46, 30,429.81 and 12,618.90 is: 17,414.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,049.46 : 30,429.81 = 12,618.90 : x
  2. Step 2: Convert to fraction form
    22,049.46/30,429.81 = 12,618.90/x
  3. Step 3: Cross multiply
    22,049.46x = 30,429.81 × 12,618.90
  4. Step 4: Simplify right side
    22,049.46x = 383,990,729.41
  5. Step 5: Solve for x
    x = 383,990,729.41/22,049.46
  6. Step 6: Final answer
    x = 17,414.97

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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.