Home / 20,162.16-27,819.72-11,777.04

Finding the Fourth Proportional to 20,162.16, 27,819.72 and 11,777.04

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Solution

The fourth proportional to 20,162.16, 27,819.72 and 11,777.04 is: 16,249.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.16 : 27,819.72 = 11,777.04 : x
  2. Step 2: Convert to fraction form
    20,162.16/27,819.72 = 11,777.04/x
  3. Step 3: Cross multiply
    20,162.16x = 27,819.72 × 11,777.04
  4. Step 4: Simplify right side
    20,162.16x = 327,633,955.23
  5. Step 5: Solve for x
    x = 327,633,955.23/20,162.16
  6. Step 6: Final answer
    x = 16,249.94

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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.