Home / 20,586.80-30,879.96-5,004.56

Finding the Fourth Proportional to 20,586.80, 30,879.96 and 5,004.56

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Solution

The fourth proportional to 20,586.80, 30,879.96 and 5,004.56 is: 7,506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.80 : 30,879.96 = 5,004.56 : x
  2. Step 2: Convert to fraction form
    20,586.80/30,879.96 = 5,004.56/x
  3. Step 3: Cross multiply
    20,586.80x = 30,879.96 × 5,004.56
  4. Step 4: Simplify right side
    20,586.80x = 154,540,612.62
  5. Step 5: Solve for x
    x = 154,540,612.62/20,586.80
  6. Step 6: Final answer
    x = 7,506.78

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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.