Home / 22,183.91-30,612.60-12,112.20

Finding the Fourth Proportional to 22,183.91, 30,612.60 and 12,112.20

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Solution

The fourth proportional to 22,183.91, 30,612.60 and 12,112.20 is: 16,714.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,183.91 : 30,612.60 = 12,112.20 : x
  2. Step 2: Convert to fraction form
    22,183.91/30,612.60 = 12,112.20/x
  3. Step 3: Cross multiply
    22,183.91x = 30,612.60 × 12,112.20
  4. Step 4: Simplify right side
    22,183.91x = 370,785,933.72
  5. Step 5: Solve for x
    x = 370,785,933.72/22,183.91
  6. Step 6: Final answer
    x = 16,714.18

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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.