Home / 30,644.20-45,960.82-8,155

Finding the Fourth Proportional to 30,644.20, 45,960.82 and 8,155

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Solution

The fourth proportional to 30,644.20, 45,960.82 and 8,155 is: 12,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,644.20 : 45,960.82 = 8,155 : x
  2. Step 2: Convert to fraction form
    30,644.20/45,960.82 = 8,155/x
  3. Step 3: Cross multiply
    30,644.20x = 45,960.82 × 8,155
  4. Step 4: Simplify right side
    30,644.20x = 374,810,487.10
  5. Step 5: Solve for x
    x = 374,810,487.10/30,644.20
  6. Step 6: Final answer
    x = 12,231.04

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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.