Home / 26,729.09-40,067.18-12,664.25

Finding the Fourth Proportional to 26,729.09, 40,067.18 and 12,664.25

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Solution

The fourth proportional to 26,729.09, 40,067.18 and 12,664.25 is: 18,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,729.09 : 40,067.18 = 12,664.25 : x
  2. Step 2: Convert to fraction form
    26,729.09/40,067.18 = 12,664.25/x
  3. Step 3: Cross multiply
    26,729.09x = 40,067.18 × 12,664.25
  4. Step 4: Simplify right side
    26,729.09x = 507,420,720.99
  5. Step 5: Solve for x
    x = 507,420,720.99/26,729.09
  6. Step 6: Final answer
    x = 18,983.84

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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.