Home / 22,255.24-30,712.32-12,183.78

Finding the Fourth Proportional to 22,255.24, 30,712.32 and 12,183.78

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Solution

The fourth proportional to 22,255.24, 30,712.32 and 12,183.78 is: 16,813.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,255.24 : 30,712.32 = 12,183.78 : x
  2. Step 2: Convert to fraction form
    22,255.24/30,712.32 = 12,183.78/x
  3. Step 3: Cross multiply
    22,255.24x = 30,712.32 × 12,183.78
  4. Step 4: Simplify right side
    22,255.24x = 374,192,150.17
  5. Step 5: Solve for x
    x = 374,192,150.17/22,255.24
  6. Step 6: Final answer
    x = 16,813.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.