Home / 13,442.08-20,163.09-3,581.36

Finding the Fourth Proportional to 13,442.08, 20,163.09 and 3,581.36

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Solution

The fourth proportional to 13,442.08, 20,163.09 and 3,581.36 is: 5,372.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.08 : 20,163.09 = 3,581.36 : x
  2. Step 2: Convert to fraction form
    13,442.08/20,163.09 = 3,581.36/x
  3. Step 3: Cross multiply
    13,442.08x = 20,163.09 × 3,581.36
  4. Step 4: Simplify right side
    13,442.08x = 72,211,284.00
  5. Step 5: Solve for x
    x = 72,211,284.00/13,442.08
  6. Step 6: Final answer
    x = 5,372.03

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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.