Home / 20,161.62-30,242.39-5,370.54

Finding the Fourth Proportional to 20,161.62, 30,242.39 and 5,370.54

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Solution

The fourth proportional to 20,161.62, 30,242.39 and 5,370.54 is: 8,055.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.62 : 30,242.39 = 5,370.54 : x
  2. Step 2: Convert to fraction form
    20,161.62/30,242.39 = 5,370.54/x
  3. Step 3: Cross multiply
    20,161.62x = 30,242.39 × 5,370.54
  4. Step 4: Simplify right side
    20,161.62x = 162,417,938.34
  5. Step 5: Solve for x
    x = 162,417,938.34/20,161.62
  6. Step 6: Final answer
    x = 8,055.80

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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.