Home / 20,450.45-30,675.68-7,301.11

Finding the Fourth Proportional to 20,450.45, 30,675.68 and 7,301.11

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Solution

The fourth proportional to 20,450.45, 30,675.68 and 7,301.11 is: 10,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.45 : 30,675.68 = 7,301.11 : x
  2. Step 2: Convert to fraction form
    20,450.45/30,675.68 = 7,301.11/x
  3. Step 3: Cross multiply
    20,450.45x = 30,675.68 × 7,301.11
  4. Step 4: Simplify right side
    20,450.45x = 223,966,514.00
  5. Step 5: Solve for x
    x = 223,966,514.00/20,450.45
  6. Step 6: Final answer
    x = 10,951.67

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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.