Home / 27,190.98-40,790.22-8,472.36

Finding the Fourth Proportional to 27,190.98, 40,790.22 and 8,472.36

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Solution

The fourth proportional to 27,190.98, 40,790.22 and 8,472.36 is: 12,709.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,190.98 : 40,790.22 = 8,472.36 : x
  2. Step 2: Convert to fraction form
    27,190.98/40,790.22 = 8,472.36/x
  3. Step 3: Cross multiply
    27,190.98x = 40,790.22 × 8,472.36
  4. Step 4: Simplify right side
    27,190.98x = 345,589,428.32
  5. Step 5: Solve for x
    x = 345,589,428.32/27,190.98
  6. Step 6: Final answer
    x = 12,709.71

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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.