Home / 20,367.54-30,511.80-15,021

Finding the Fourth Proportional to 20,367.54, 30,511.80 and 15,021

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Solution

The fourth proportional to 20,367.54, 30,511.80 and 15,021 is: 22,502.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.54 : 30,511.80 = 15,021 : x
  2. Step 2: Convert to fraction form
    20,367.54/30,511.80 = 15,021/x
  3. Step 3: Cross multiply
    20,367.54x = 30,511.80 × 15,021
  4. Step 4: Simplify right side
    20,367.54x = 458,317,747.80
  5. Step 5: Solve for x
    x = 458,317,747.80/20,367.54
  6. Step 6: Final answer
    x = 22,502.36

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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.