Home / 19,046.40-28,531.20-12,096

Finding the Fourth Proportional to 19,046.40, 28,531.20 and 12,096

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Solution

The fourth proportional to 19,046.40, 28,531.20 and 12,096 is: 18,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,046.40 : 28,531.20 = 12,096 : x
  2. Step 2: Convert to fraction form
    19,046.40/28,531.20 = 12,096/x
  3. Step 3: Cross multiply
    19,046.40x = 28,531.20 × 12,096
  4. Step 4: Simplify right side
    19,046.40x = 345,113,395.20
  5. Step 5: Solve for x
    x = 345,113,395.20/19,046.40
  6. Step 6: Final answer
    x = 18,119.61

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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.