Home / 20,343.48-30,521.70-11,103

Finding the Fourth Proportional to 20,343.48, 30,521.70 and 11,103

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Solution

The fourth proportional to 20,343.48, 30,521.70 and 11,103 is: 16,658.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.48 : 30,521.70 = 11,103 : x
  2. Step 2: Convert to fraction form
    20,343.48/30,521.70 = 11,103/x
  3. Step 3: Cross multiply
    20,343.48x = 30,521.70 × 11,103
  4. Step 4: Simplify right side
    20,343.48x = 338,882,435.10
  5. Step 5: Solve for x
    x = 338,882,435.10/20,343.48
  6. Step 6: Final answer
    x = 16,658.04

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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.