Home / 20,105.37-27,727.25-12,552.39

Finding the Fourth Proportional to 20,105.37, 27,727.25 and 12,552.39

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Solution

The fourth proportional to 20,105.37, 27,727.25 and 12,552.39 is: 17,310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.37 : 27,727.25 = 12,552.39 : x
  2. Step 2: Convert to fraction form
    20,105.37/27,727.25 = 12,552.39/x
  3. Step 3: Cross multiply
    20,105.37x = 27,727.25 × 12,552.39
  4. Step 4: Simplify right side
    20,105.37x = 348,043,192.87
  5. Step 5: Solve for x
    x = 348,043,192.87/20,105.37
  6. Step 6: Final answer
    x = 17,310.96

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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.