Home / 20,180.61-30,223.94-19,479.83

Finding the Fourth Proportional to 20,180.61, 30,223.94 and 19,479.83

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Solution

The fourth proportional to 20,180.61, 30,223.94 and 19,479.83 is: 29,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.61 : 30,223.94 = 19,479.83 : x
  2. Step 2: Convert to fraction form
    20,180.61/30,223.94 = 19,479.83/x
  3. Step 3: Cross multiply
    20,180.61x = 30,223.94 × 19,479.83
  4. Step 4: Simplify right side
    20,180.61x = 588,756,964.61
  5. Step 5: Solve for x
    x = 588,756,964.61/20,180.61
  6. Step 6: Final answer
    x = 29,174.39

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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.