Home / 19,942.12-29,910.87-5,149.88

Finding the Fourth Proportional to 19,942.12, 29,910.87 and 5,149.88

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Solution

The fourth proportional to 19,942.12, 29,910.87 and 5,149.88 is: 7,724.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.12 : 29,910.87 = 5,149.88 : x
  2. Step 2: Convert to fraction form
    19,942.12/29,910.87 = 5,149.88/x
  3. Step 3: Cross multiply
    19,942.12x = 29,910.87 × 5,149.88
  4. Step 4: Simplify right side
    19,942.12x = 154,037,353.81
  5. Step 5: Solve for x
    x = 154,037,353.81/19,942.12
  6. Step 6: Final answer
    x = 7,724.22

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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.