Home / 19,872.27-29,808.68-5,081.31

Finding the Fourth Proportional to 19,872.27, 29,808.68 and 5,081.31

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Solution

The fourth proportional to 19,872.27, 29,808.68 and 5,081.31 is: 7,622.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.27 : 29,808.68 = 5,081.31 : x
  2. Step 2: Convert to fraction form
    19,872.27/29,808.68 = 5,081.31/x
  3. Step 3: Cross multiply
    19,872.27x = 29,808.68 × 5,081.31
  4. Step 4: Simplify right side
    19,872.27x = 151,467,118.36
  5. Step 5: Solve for x
    x = 151,467,118.36/19,872.27
  6. Step 6: Final answer
    x = 7,622.03

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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.