Home / 19,245.06-28,872.68-8,152.16

Finding the Fourth Proportional to 19,245.06, 28,872.68 and 8,152.16

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Solution

The fourth proportional to 19,245.06, 28,872.68 and 8,152.16 is: 12,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245.06 : 28,872.68 = 8,152.16 : x
  2. Step 2: Convert to fraction form
    19,245.06/28,872.68 = 8,152.16/x
  3. Step 3: Cross multiply
    19,245.06x = 28,872.68 × 8,152.16
  4. Step 4: Simplify right side
    19,245.06x = 235,374,521.86
  5. Step 5: Solve for x
    x = 235,374,521.86/19,245.06
  6. Step 6: Final answer
    x = 12,230.39

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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.