Home / 28,709.92-43,067.28-10,936

Finding the Fourth Proportional to 28,709.92, 43,067.28 and 10,936

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Solution

The fourth proportional to 28,709.92, 43,067.28 and 10,936 is: 16,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.92 : 43,067.28 = 10,936 : x
  2. Step 2: Convert to fraction form
    28,709.92/43,067.28 = 10,936/x
  3. Step 3: Cross multiply
    28,709.92x = 43,067.28 × 10,936
  4. Step 4: Simplify right side
    28,709.92x = 470,983,774.08
  5. Step 5: Solve for x
    x = 470,983,774.08/28,709.92
  6. Step 6: Final answer
    x = 16,404.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.