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Finding the Fourth Proportional to 26,990, 40,486.44 and 10,352.48

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Solution

The fourth proportional to 26,990, 40,486.44 and 10,352.48 is: 15,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,990 : 40,486.44 = 10,352.48 : x
  2. Step 2: Convert to fraction form
    26,990/40,486.44 = 10,352.48/x
  3. Step 3: Cross multiply
    26,990x = 40,486.44 × 10,352.48
  4. Step 4: Simplify right side
    26,990x = 419,135,060.37
  5. Step 5: Solve for x
    x = 419,135,060.37/26,990
  6. Step 6: Final answer
    x = 15,529.27

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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.