Home / 20,101.50-27,743.31-11,716.38

Finding the Fourth Proportional to 20,101.50, 27,743.31 and 11,716.38

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Solution

The fourth proportional to 20,101.50, 27,743.31 and 11,716.38 is: 16,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.50 : 27,743.31 = 11,716.38 : x
  2. Step 2: Convert to fraction form
    20,101.50/27,743.31 = 11,716.38/x
  3. Step 3: Cross multiply
    20,101.50x = 27,743.31 × 11,716.38
  4. Step 4: Simplify right side
    20,101.50x = 325,051,162.42
  5. Step 5: Solve for x
    x = 325,051,162.42/20,101.50
  6. Step 6: Final answer
    x = 16,170.49

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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.