Home / 19,789.68-29,682-8,694.24

Finding the Fourth Proportional to 19,789.68, 29,682 and 8,694.24

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Solution

The fourth proportional to 19,789.68, 29,682 and 8,694.24 is: 13,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.68 : 29,682 = 8,694.24 : x
  2. Step 2: Convert to fraction form
    19,789.68/29,682 = 8,694.24/x
  3. Step 3: Cross multiply
    19,789.68x = 29,682 × 8,694.24
  4. Step 4: Simplify right side
    19,789.68x = 258,062,431.68
  5. Step 5: Solve for x
    x = 258,062,431.68/19,789.68
  6. Step 6: Final answer
    x = 13,040.25

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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.