Home / 20,556.91-30,835.26-4,974.54

Finding the Fourth Proportional to 20,556.91, 30,835.26 and 4,974.54

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Solution

The fourth proportional to 20,556.91, 30,835.26 and 4,974.54 is: 7,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,556.91 : 30,835.26 = 4,974.54 : x
  2. Step 2: Convert to fraction form
    20,556.91/30,835.26 = 4,974.54/x
  3. Step 3: Cross multiply
    20,556.91x = 30,835.26 × 4,974.54
  4. Step 4: Simplify right side
    20,556.91x = 153,391,234.28
  5. Step 5: Solve for x
    x = 153,391,234.28/20,556.91
  6. Step 6: Final answer
    x = 7,461.78

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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.