Home / 18,791.10-25,879.23-18,382.86

Finding the Fourth Proportional to 18,791.10, 25,879.23 and 18,382.86

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Solution

The fourth proportional to 18,791.10, 25,879.23 and 18,382.86 is: 25,317.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.10 : 25,879.23 = 18,382.86 : x
  2. Step 2: Convert to fraction form
    18,791.10/25,879.23 = 18,382.86/x
  3. Step 3: Cross multiply
    18,791.10x = 25,879.23 × 18,382.86
  4. Step 4: Simplify right side
    18,791.10x = 475,734,262.00
  5. Step 5: Solve for x
    x = 475,734,262.00/18,791.10
  6. Step 6: Final answer
    x = 25,317.00

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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.