Home / 26,651.81-39,977.92-9,121.79

Finding the Fourth Proportional to 26,651.81, 39,977.92 and 9,121.79

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Solution

The fourth proportional to 26,651.81, 39,977.92 and 9,121.79 is: 13,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,651.81 : 39,977.92 = 9,121.79 : x
  2. Step 2: Convert to fraction form
    26,651.81/39,977.92 = 9,121.79/x
  3. Step 3: Cross multiply
    26,651.81x = 39,977.92 × 9,121.79
  4. Step 4: Simplify right side
    26,651.81x = 364,670,302.22
  5. Step 5: Solve for x
    x = 364,670,302.22/26,651.81
  6. Step 6: Final answer
    x = 13,682.76

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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.