Home / 20,161.67-30,242.45-5,370.64

Finding the Fourth Proportional to 20,161.67, 30,242.45 and 5,370.64

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Solution

The fourth proportional to 20,161.67, 30,242.45 and 5,370.64 is: 8,055.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.67 : 30,242.45 = 5,370.64 : x
  2. Step 2: Convert to fraction form
    20,161.67/30,242.45 = 5,370.64/x
  3. Step 3: Cross multiply
    20,161.67x = 30,242.45 × 5,370.64
  4. Step 4: Simplify right side
    20,161.67x = 162,421,249.49
  5. Step 5: Solve for x
    x = 162,421,249.49/20,161.67
  6. Step 6: Final answer
    x = 8,055.94

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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.