Home / 29,103.14-43,618.20-12,443.60

Finding the Fourth Proportional to 29,103.14, 43,618.20 and 12,443.60

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Solution

The fourth proportional to 29,103.14, 43,618.20 and 12,443.60 is: 18,649.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,103.14 : 43,618.20 = 12,443.60 : x
  2. Step 2: Convert to fraction form
    29,103.14/43,618.20 = 12,443.60/x
  3. Step 3: Cross multiply
    29,103.14x = 43,618.20 × 12,443.60
  4. Step 4: Simplify right side
    29,103.14x = 542,767,433.52
  5. Step 5: Solve for x
    x = 542,767,433.52/29,103.14
  6. Step 6: Final answer
    x = 18,649.79

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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.