Home / 20,289.56-30,450.03-13,267.67

Finding the Fourth Proportional to 20,289.56, 30,450.03 and 13,267.67

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Solution

The fourth proportional to 20,289.56, 30,450.03 and 13,267.67 is: 19,911.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.56 : 30,450.03 = 13,267.67 : x
  2. Step 2: Convert to fraction form
    20,289.56/30,450.03 = 13,267.67/x
  3. Step 3: Cross multiply
    20,289.56x = 30,450.03 × 13,267.67
  4. Step 4: Simplify right side
    20,289.56x = 404,000,747.53
  5. Step 5: Solve for x
    x = 404,000,747.53/20,289.56
  6. Step 6: Final answer
    x = 19,911.76

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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.