Home / 26,675.82-39,981.83-12,425.09

Finding the Fourth Proportional to 26,675.82, 39,981.83 and 12,425.09

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Solution

The fourth proportional to 26,675.82, 39,981.83 and 12,425.09 is: 18,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,675.82 : 39,981.83 = 12,425.09 : x
  2. Step 2: Convert to fraction form
    26,675.82/39,981.83 = 12,425.09/x
  3. Step 3: Cross multiply
    26,675.82x = 39,981.83 × 12,425.09
  4. Step 4: Simplify right side
    26,675.82x = 496,777,574.08
  5. Step 5: Solve for x
    x = 496,777,574.08/26,675.82
  6. Step 6: Final answer
    x = 18,622.77

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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.