Home / 13,824.21-20,736.32-3,435.96

Finding the Fourth Proportional to 13,824.21, 20,736.32 and 3,435.96

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Solution

The fourth proportional to 13,824.21, 20,736.32 and 3,435.96 is: 5,153.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.21 : 20,736.32 = 3,435.96 : x
  2. Step 2: Convert to fraction form
    13,824.21/20,736.32 = 3,435.96/x
  3. Step 3: Cross multiply
    13,824.21x = 20,736.32 × 3,435.96
  4. Step 4: Simplify right side
    13,824.21x = 71,249,226.65
  5. Step 5: Solve for x
    x = 71,249,226.65/13,824.21
  6. Step 6: Final answer
    x = 5,153.94

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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.