Home / 21,933.38-30,238.44-18,942.86

Finding the Fourth Proportional to 21,933.38, 30,238.44 and 18,942.86

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Solution

The fourth proportional to 21,933.38, 30,238.44 and 18,942.86 is: 26,115.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,933.38 : 30,238.44 = 18,942.86 : x
  2. Step 2: Convert to fraction form
    21,933.38/30,238.44 = 18,942.86/x
  3. Step 3: Cross multiply
    21,933.38x = 30,238.44 × 18,942.86
  4. Step 4: Simplify right side
    21,933.38x = 572,802,535.54
  5. Step 5: Solve for x
    x = 572,802,535.54/21,933.38
  6. Step 6: Final answer
    x = 26,115.56

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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.