Home / 20,389.44-30,519.36-11,016.12

Finding the Fourth Proportional to 20,389.44, 30,519.36 and 11,016.12

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Solution

The fourth proportional to 20,389.44, 30,519.36 and 11,016.12 is: 16,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.44 : 30,519.36 = 11,016.12 : x
  2. Step 2: Convert to fraction form
    20,389.44/30,519.36 = 11,016.12/x
  3. Step 3: Cross multiply
    20,389.44x = 30,519.36 × 11,016.12
  4. Step 4: Simplify right side
    20,389.44x = 336,204,932.08
  5. Step 5: Solve for x
    x = 336,204,932.08/20,389.44
  6. Step 6: Final answer
    x = 16,489.17

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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.