Home / 20,600.84-30,906.66-8,911.32

Finding the Fourth Proportional to 20,600.84, 30,906.66 and 8,911.32

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Solution

The fourth proportional to 20,600.84, 30,906.66 and 8,911.32 is: 13,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.84 : 30,906.66 = 8,911.32 : x
  2. Step 2: Convert to fraction form
    20,600.84/30,906.66 = 8,911.32/x
  3. Step 3: Cross multiply
    20,600.84x = 30,906.66 × 8,911.32
  4. Step 4: Simplify right side
    20,600.84x = 275,419,137.39
  5. Step 5: Solve for x
    x = 275,419,137.39/20,600.84
  6. Step 6: Final answer
    x = 13,369.32

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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.