Home / 20,162.88-27,824.42-11,210.19

Finding the Fourth Proportional to 20,162.88, 27,824.42 and 11,210.19

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Solution

The fourth proportional to 20,162.88, 27,824.42 and 11,210.19 is: 15,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.88 : 27,824.42 = 11,210.19 : x
  2. Step 2: Convert to fraction form
    20,162.88/27,824.42 = 11,210.19/x
  3. Step 3: Cross multiply
    20,162.88x = 27,824.42 × 11,210.19
  4. Step 4: Simplify right side
    20,162.88x = 311,916,978.79
  5. Step 5: Solve for x
    x = 311,916,978.79/20,162.88
  6. Step 6: Final answer
    x = 15,469.86

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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.