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Finding the Fourth Proportional to 26,268, 36,249.84 and 19,559.40

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Solution

The fourth proportional to 26,268, 36,249.84 and 19,559.40 is: 26,991.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,268 : 36,249.84 = 19,559.40 : x
  2. Step 2: Convert to fraction form
    26,268/36,249.84 = 19,559.40/x
  3. Step 3: Cross multiply
    26,268x = 36,249.84 × 19,559.40
  4. Step 4: Simplify right side
    26,268x = 709,025,120.50
  5. Step 5: Solve for x
    x = 709,025,120.50/26,268
  6. Step 6: Final answer
    x = 26,991.97

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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.