Home / 22,183.21-30,612.60-12,111.62

Finding the Fourth Proportional to 22,183.21, 30,612.60 and 12,111.62

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Solution

The fourth proportional to 22,183.21, 30,612.60 and 12,111.62 is: 16,713.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,183.21 : 30,612.60 = 12,111.62 : x
  2. Step 2: Convert to fraction form
    22,183.21/30,612.60 = 12,111.62/x
  3. Step 3: Cross multiply
    22,183.21x = 30,612.60 × 12,111.62
  4. Step 4: Simplify right side
    22,183.21x = 370,768,060.35
  5. Step 5: Solve for x
    x = 370,768,060.35/22,183.21
  6. Step 6: Final answer
    x = 16,713.91

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Double scale
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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.