Home / 20,162.18-27,825.70-11,212.48

Finding the Fourth Proportional to 20,162.18, 27,825.70 and 11,212.48

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Solution

The fourth proportional to 20,162.18, 27,825.70 and 11,212.48 is: 15,474.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.18 : 27,825.70 = 11,212.48 : x
  2. Step 2: Convert to fraction form
    20,162.18/27,825.70 = 11,212.48/x
  3. Step 3: Cross multiply
    20,162.18x = 27,825.70 × 11,212.48
  4. Step 4: Simplify right side
    20,162.18x = 311,995,104.74
  5. Step 5: Solve for x
    x = 311,995,104.74/20,162.18
  6. Step 6: Final answer
    x = 15,474.27

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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.