Home / 19,648.46-29,414.78-12,972.71

Finding the Fourth Proportional to 19,648.46, 29,414.78 and 12,972.71

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Solution

The fourth proportional to 19,648.46, 29,414.78 and 12,972.71 is: 19,420.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.46 : 29,414.78 = 12,972.71 : x
  2. Step 2: Convert to fraction form
    19,648.46/29,414.78 = 12,972.71/x
  3. Step 3: Cross multiply
    19,648.46x = 29,414.78 × 12,972.71
  4. Step 4: Simplify right side
    19,648.46x = 381,589,467.97
  5. Step 5: Solve for x
    x = 381,589,467.97/19,648.46
  6. Step 6: Final answer
    x = 19,420.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.