Home / 20,791.38-28,625.49-16,825.62

Finding the Fourth Proportional to 20,791.38, 28,625.49 and 16,825.62

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Solution

The fourth proportional to 20,791.38, 28,625.49 and 16,825.62 is: 23,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,791.38 : 28,625.49 = 16,825.62 : x
  2. Step 2: Convert to fraction form
    20,791.38/28,625.49 = 16,825.62/x
  3. Step 3: Cross multiply
    20,791.38x = 28,625.49 × 16,825.62
  4. Step 4: Simplify right side
    20,791.38x = 481,641,617.05
  5. Step 5: Solve for x
    x = 481,641,617.05/20,791.38
  6. Step 6: Final answer
    x = 23,165.45

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1.5x scale

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.