Home / 19,789.58-29,679.18-5,745.83

Finding the Fourth Proportional to 19,789.58, 29,679.18 and 5,745.83

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Solution

The fourth proportional to 19,789.58, 29,679.18 and 5,745.83 is: 8,617.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789.58 : 29,679.18 = 5,745.83 : x
  2. Step 2: Convert to fraction form
    19,789.58/29,679.18 = 5,745.83/x
  3. Step 3: Cross multiply
    19,789.58x = 29,679.18 × 5,745.83
  4. Step 4: Simplify right side
    19,789.58x = 170,531,633.75
  5. Step 5: Solve for x
    x = 170,531,633.75/19,789.58
  6. Step 6: Final answer
    x = 8,617.24

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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.