Home / 28,383.08-42,561.82-8,664.04

Finding the Fourth Proportional to 28,383.08, 42,561.82 and 8,664.04

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Solution

The fourth proportional to 28,383.08, 42,561.82 and 8,664.04 is: 12,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.08 : 42,561.82 = 8,664.04 : x
  2. Step 2: Convert to fraction form
    28,383.08/42,561.82 = 8,664.04/x
  3. Step 3: Cross multiply
    28,383.08x = 42,561.82 × 8,664.04
  4. Step 4: Simplify right side
    28,383.08x = 368,757,310.95
  5. Step 5: Solve for x
    x = 368,757,310.95/28,383.08
  6. Step 6: Final answer
    x = 12,992.15

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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.