Home / 13,629.90-20,442.26-4,268.50

Finding the Fourth Proportional to 13,629.90, 20,442.26 and 4,268.50

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Solution

The fourth proportional to 13,629.90, 20,442.26 and 4,268.50 is: 6,401.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.90 : 20,442.26 = 4,268.50 : x
  2. Step 2: Convert to fraction form
    13,629.90/20,442.26 = 4,268.50/x
  3. Step 3: Cross multiply
    13,629.90x = 20,442.26 × 4,268.50
  4. Step 4: Simplify right side
    13,629.90x = 87,257,786.81
  5. Step 5: Solve for x
    x = 87,257,786.81/13,629.90
  6. Step 6: Final answer
    x = 6,401.94

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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.