Home / 13,442.36-20,163.52-3,581.67

Finding the Fourth Proportional to 13,442.36, 20,163.52 and 3,581.67

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Solution

The fourth proportional to 13,442.36, 20,163.52 and 3,581.67 is: 5,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.36 : 20,163.52 = 3,581.67 : x
  2. Step 2: Convert to fraction form
    13,442.36/20,163.52 = 3,581.67/x
  3. Step 3: Cross multiply
    13,442.36x = 20,163.52 × 3,581.67
  4. Step 4: Simplify right side
    13,442.36x = 72,219,074.68
  5. Step 5: Solve for x
    x = 72,219,074.68/13,442.36
  6. Step 6: Final answer
    x = 5,372.50

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1.5x scale

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.