Home / 21,868.83-32,791.91-7,823.43

Finding the Fourth Proportional to 21,868.83, 32,791.91 and 7,823.43

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Solution

The fourth proportional to 21,868.83, 32,791.91 and 7,823.43 is: 11,731.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,868.83 : 32,791.91 = 7,823.43 : x
  2. Step 2: Convert to fraction form
    21,868.83/32,791.91 = 7,823.43/x
  3. Step 3: Cross multiply
    21,868.83x = 32,791.91 × 7,823.43
  4. Step 4: Simplify right side
    21,868.83x = 256,545,173.33
  5. Step 5: Solve for x
    x = 256,545,173.33/21,868.83
  6. Step 6: Final answer
    x = 11,731.09

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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.