Home / 20,814.66-31,183.11-16,187.94

Finding the Fourth Proportional to 20,814.66, 31,183.11 and 16,187.94

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Solution

The fourth proportional to 20,814.66, 31,183.11 and 16,187.94 is: 24,251.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.66 : 31,183.11 = 16,187.94 : x
  2. Step 2: Convert to fraction form
    20,814.66/31,183.11 = 16,187.94/x
  3. Step 3: Cross multiply
    20,814.66x = 31,183.11 × 16,187.94
  4. Step 4: Simplify right side
    20,814.66x = 504,790,313.69
  5. Step 5: Solve for x
    x = 504,790,313.69/20,814.66
  6. Step 6: Final answer
    x = 24,251.67

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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.