Home / 20,238.72-30,355.56-8,550.42

Finding the Fourth Proportional to 20,238.72, 30,355.56 and 8,550.42

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Solution

The fourth proportional to 20,238.72, 30,355.56 and 8,550.42 is: 12,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238.72 : 30,355.56 = 8,550.42 : x
  2. Step 2: Convert to fraction form
    20,238.72/30,355.56 = 8,550.42/x
  3. Step 3: Cross multiply
    20,238.72x = 30,355.56 × 8,550.42
  4. Step 4: Simplify right side
    20,238.72x = 259,552,787.34
  5. Step 5: Solve for x
    x = 259,552,787.34/20,238.72
  6. Step 6: Final answer
    x = 12,824.57

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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.