Home / 20,105.42-27,727.32-12,552.44

Finding the Fourth Proportional to 20,105.42, 27,727.32 and 12,552.44

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Solution

The fourth proportional to 20,105.42, 27,727.32 and 12,552.44 is: 17,311.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,105.42 : 27,727.32 = 12,552.44 : x
  2. Step 2: Convert to fraction form
    20,105.42/27,727.32 = 12,552.44/x
  3. Step 3: Cross multiply
    20,105.42x = 27,727.32 × 12,552.44
  4. Step 4: Simplify right side
    20,105.42x = 348,045,542.91
  5. Step 5: Solve for x
    x = 348,045,542.91/20,105.42
  6. Step 6: Final answer
    x = 17,311.03

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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.