Home / 20,391.22-30,586.78-5,600.15

Finding the Fourth Proportional to 20,391.22, 30,586.78 and 5,600.15

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Solution

The fourth proportional to 20,391.22, 30,586.78 and 5,600.15 is: 8,400.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.22 : 30,586.78 = 5,600.15 : x
  2. Step 2: Convert to fraction form
    20,391.22/30,586.78 = 5,600.15/x
  3. Step 3: Cross multiply
    20,391.22x = 30,586.78 × 5,600.15
  4. Step 4: Simplify right side
    20,391.22x = 171,290,642.72
  5. Step 5: Solve for x
    x = 171,290,642.72/20,391.22
  6. Step 6: Final answer
    x = 8,400.21

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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.