Home / 20,370.92-30,556.42-5,579.98

Finding the Fourth Proportional to 20,370.92, 30,556.42 and 5,579.98

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Solution

The fourth proportional to 20,370.92, 30,556.42 and 5,579.98 is: 8,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.92 : 30,556.42 = 5,579.98 : x
  2. Step 2: Convert to fraction form
    20,370.92/30,556.42 = 5,579.98/x
  3. Step 3: Cross multiply
    20,370.92x = 30,556.42 × 5,579.98
  4. Step 4: Simplify right side
    20,370.92x = 170,504,212.47
  5. Step 5: Solve for x
    x = 170,504,212.47/20,370.92
  6. Step 6: Final answer
    x = 8,369.98

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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.