Home / 29,115.20-43,655.20-11,564.80

Finding the Fourth Proportional to 29,115.20, 43,655.20 and 11,564.80

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Solution

The fourth proportional to 29,115.20, 43,655.20 and 11,564.80 is: 17,340.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,115.20 : 43,655.20 = 11,564.80 : x
  2. Step 2: Convert to fraction form
    29,115.20/43,655.20 = 11,564.80/x
  3. Step 3: Cross multiply
    29,115.20x = 43,655.20 × 11,564.80
  4. Step 4: Simplify right side
    29,115.20x = 504,863,656.96
  5. Step 5: Solve for x
    x = 504,863,656.96/29,115.20
  6. Step 6: Final answer
    x = 17,340.21

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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.