Home / 26,636.92-39,893.12-21,052.78

Finding the Fourth Proportional to 26,636.92, 39,893.12 and 21,052.78

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Solution

The fourth proportional to 26,636.92, 39,893.12 and 21,052.78 is: 31,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,636.92 : 39,893.12 = 21,052.78 : x
  2. Step 2: Convert to fraction form
    26,636.92/39,893.12 = 21,052.78/x
  3. Step 3: Cross multiply
    26,636.92x = 39,893.12 × 21,052.78
  4. Step 4: Simplify right side
    26,636.92x = 839,861,078.87
  5. Step 5: Solve for x
    x = 839,861,078.87/26,636.92
  6. Step 6: Final answer
    x = 31,529.96

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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.