Home / 20,161.73-30,242.67-6,121.88

Finding the Fourth Proportional to 20,161.73, 30,242.67 and 6,121.88

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Solution

The fourth proportional to 20,161.73, 30,242.67 and 6,121.88 is: 9,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.73 : 30,242.67 = 6,121.88 : x
  2. Step 2: Convert to fraction form
    20,161.73/30,242.67 = 6,121.88/x
  3. Step 3: Cross multiply
    20,161.73x = 30,242.67 × 6,121.88
  4. Step 4: Simplify right side
    20,161.73x = 185,141,935.86
  5. Step 5: Solve for x
    x = 185,141,935.86/20,161.73
  6. Step 6: Final answer
    x = 9,182.84

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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.