Home / 13,631.19-20,447.24-3,635.84

Finding the Fourth Proportional to 13,631.19, 20,447.24 and 3,635.84

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Solution

The fourth proportional to 13,631.19, 20,447.24 and 3,635.84 is: 5,453.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.19 : 20,447.24 = 3,635.84 : x
  2. Step 2: Convert to fraction form
    13,631.19/20,447.24 = 3,635.84/x
  3. Step 3: Cross multiply
    13,631.19x = 20,447.24 × 3,635.84
  4. Step 4: Simplify right side
    13,631.19x = 74,342,772.67
  5. Step 5: Solve for x
    x = 74,342,772.67/13,631.19
  6. Step 6: Final answer
    x = 5,453.87

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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.