Home / 36,198.24-54,284.05-12,499.78

Finding the Fourth Proportional to 36,198.24, 54,284.05 and 12,499.78

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Solution

The fourth proportional to 36,198.24, 54,284.05 and 12,499.78 is: 18,745.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,198.24 : 54,284.05 = 12,499.78 : x
  2. Step 2: Convert to fraction form
    36,198.24/54,284.05 = 12,499.78/x
  3. Step 3: Cross multiply
    36,198.24x = 54,284.05 × 12,499.78
  4. Step 4: Simplify right side
    36,198.24x = 678,538,682.51
  5. Step 5: Solve for x
    x = 678,538,682.51/36,198.24
  6. Step 6: Final answer
    x = 18,745.07

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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.