Home / 13,578.45-20,367.69-3,717.81

Finding the Fourth Proportional to 13,578.45, 20,367.69 and 3,717.81

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Solution

The fourth proportional to 13,578.45, 20,367.69 and 3,717.81 is: 5,576.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.45 : 20,367.69 = 3,717.81 : x
  2. Step 2: Convert to fraction form
    13,578.45/20,367.69 = 3,717.81/x
  3. Step 3: Cross multiply
    13,578.45x = 20,367.69 × 3,717.81
  4. Step 4: Simplify right side
    13,578.45x = 75,723,201.56
  5. Step 5: Solve for x
    x = 75,723,201.56/13,578.45
  6. Step 6: Final answer
    x = 5,576.72

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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.