Home / 20,760.19-31,136.41-5,562.94

Finding the Fourth Proportional to 20,760.19, 31,136.41 and 5,562.94

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Solution

The fourth proportional to 20,760.19, 31,136.41 and 5,562.94 is: 8,343.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.19 : 31,136.41 = 5,562.94 : x
  2. Step 2: Convert to fraction form
    20,760.19/31,136.41 = 5,562.94/x
  3. Step 3: Cross multiply
    20,760.19x = 31,136.41 × 5,562.94
  4. Step 4: Simplify right side
    20,760.19x = 173,209,936.85
  5. Step 5: Solve for x
    x = 173,209,936.85/20,760.19
  6. Step 6: Final answer
    x = 8,343.37

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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.