Home / 20,201.33-30,302.01-5,409.87

Finding the Fourth Proportional to 20,201.33, 30,302.01 and 5,409.87

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Solution

The fourth proportional to 20,201.33, 30,302.01 and 5,409.87 is: 8,114.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.33 : 30,302.01 = 5,409.87 : x
  2. Step 2: Convert to fraction form
    20,201.33/30,302.01 = 5,409.87/x
  3. Step 3: Cross multiply
    20,201.33x = 30,302.01 × 5,409.87
  4. Step 4: Simplify right side
    20,201.33x = 163,929,976.44
  5. Step 5: Solve for x
    x = 163,929,976.44/20,201.33
  6. Step 6: Final answer
    x = 8,114.81

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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.