Home / 27,997.28-41,982.23-12,215.64

Finding the Fourth Proportional to 27,997.28, 41,982.23 and 12,215.64

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Solution

The fourth proportional to 27,997.28, 41,982.23 and 12,215.64 is: 18,317.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,997.28 : 41,982.23 = 12,215.64 : x
  2. Step 2: Convert to fraction form
    27,997.28/41,982.23 = 12,215.64/x
  3. Step 3: Cross multiply
    27,997.28x = 41,982.23 × 12,215.64
  4. Step 4: Simplify right side
    27,997.28x = 512,839,996.05
  5. Step 5: Solve for x
    x = 512,839,996.05/27,997.28
  6. Step 6: Final answer
    x = 18,317.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.