Home / 28,739.08-39,659.54-16,163.83

Finding the Fourth Proportional to 28,739.08, 39,659.54 and 16,163.83

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Solution

The fourth proportional to 28,739.08, 39,659.54 and 16,163.83 is: 22,305.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.08 : 39,659.54 = 16,163.83 : x
  2. Step 2: Convert to fraction form
    28,739.08/39,659.54 = 16,163.83/x
  3. Step 3: Cross multiply
    28,739.08x = 39,659.54 × 16,163.83
  4. Step 4: Simplify right side
    28,739.08x = 641,050,003.70
  5. Step 5: Solve for x
    x = 641,050,003.70/28,739.08
  6. Step 6: Final answer
    x = 22,305.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.