Home / 20,161.49-30,242.20-5,370.41

Finding the Fourth Proportional to 20,161.49, 30,242.20 and 5,370.41

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Solution

The fourth proportional to 20,161.49, 30,242.20 and 5,370.41 is: 8,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.49 : 30,242.20 = 5,370.41 : x
  2. Step 2: Convert to fraction form
    20,161.49/30,242.20 = 5,370.41/x
  3. Step 3: Cross multiply
    20,161.49x = 30,242.20 × 5,370.41
  4. Step 4: Simplify right side
    20,161.49x = 162,413,013.30
  5. Step 5: Solve for x
    x = 162,413,013.30/20,161.49
  6. Step 6: Final answer
    x = 8,055.61

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1.5x scale

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.