Home / 20,234.38-30,351.86-7,755.04

Finding the Fourth Proportional to 20,234.38, 30,351.86 and 7,755.04

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Solution

The fourth proportional to 20,234.38, 30,351.86 and 7,755.04 is: 11,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.38 : 30,351.86 = 7,755.04 : x
  2. Step 2: Convert to fraction form
    20,234.38/30,351.86 = 7,755.04/x
  3. Step 3: Cross multiply
    20,234.38x = 30,351.86 × 7,755.04
  4. Step 4: Simplify right side
    20,234.38x = 235,379,888.37
  5. Step 5: Solve for x
    x = 235,379,888.37/20,234.38
  6. Step 6: Final answer
    x = 11,632.67

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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.