Home / 28,781.08-39,723.48-16,205.92

Finding the Fourth Proportional to 28,781.08, 39,723.48 and 16,205.92

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Solution

The fourth proportional to 28,781.08, 39,723.48 and 16,205.92 is: 22,367.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.08 : 39,723.48 = 16,205.92 : x
  2. Step 2: Convert to fraction form
    28,781.08/39,723.48 = 16,205.92/x
  3. Step 3: Cross multiply
    28,781.08x = 39,723.48 × 16,205.92
  4. Step 4: Simplify right side
    28,781.08x = 643,755,539.00
  5. Step 5: Solve for x
    x = 643,755,539.00/28,781.08
  6. Step 6: Final answer
    x = 22,367.32

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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.