Home / 21,775.38-32,658.44-12,764.11

Finding the Fourth Proportional to 21,775.38, 32,658.44 and 12,764.11

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Solution

The fourth proportional to 21,775.38, 32,658.44 and 12,764.11 is: 19,143.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,775.38 : 32,658.44 = 12,764.11 : x
  2. Step 2: Convert to fraction form
    21,775.38/32,658.44 = 12,764.11/x
  3. Step 3: Cross multiply
    21,775.38x = 32,658.44 × 12,764.11
  4. Step 4: Simplify right side
    21,775.38x = 416,855,816.30
  5. Step 5: Solve for x
    x = 416,855,816.30/21,775.38
  6. Step 6: Final answer
    x = 19,143.44

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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.