Home / 29,121.20-43,645.24-12,461.64

Finding the Fourth Proportional to 29,121.20, 43,645.24 and 12,461.64

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Solution

The fourth proportional to 29,121.20, 43,645.24 and 12,461.64 is: 18,676.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121.20 : 43,645.24 = 12,461.64 : x
  2. Step 2: Convert to fraction form
    29,121.20/43,645.24 = 12,461.64/x
  3. Step 3: Cross multiply
    29,121.20x = 43,645.24 × 12,461.64
  4. Step 4: Simplify right side
    29,121.20x = 543,891,268.59
  5. Step 5: Solve for x
    x = 543,891,268.59/29,121.20
  6. Step 6: Final answer
    x = 18,676.82

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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.