Home / 22,143.78-30,558.26-12,072.24

Finding the Fourth Proportional to 22,143.78, 30,558.26 and 12,072.24

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Solution

The fourth proportional to 22,143.78, 30,558.26 and 12,072.24 is: 16,659.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.78 : 30,558.26 = 12,072.24 : x
  2. Step 2: Convert to fraction form
    22,143.78/30,558.26 = 12,072.24/x
  3. Step 3: Cross multiply
    22,143.78x = 30,558.26 × 12,072.24
  4. Step 4: Simplify right side
    22,143.78x = 368,906,678.88
  5. Step 5: Solve for x
    x = 368,906,678.88/22,143.78
  6. Step 6: Final answer
    x = 16,659.61

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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.