Home / 20,231.06-30,338.88-6,186.80

Finding the Fourth Proportional to 20,231.06, 30,338.88 and 6,186.80

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Solution

The fourth proportional to 20,231.06, 30,338.88 and 6,186.80 is: 9,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.06 : 30,338.88 = 6,186.80 : x
  2. Step 2: Convert to fraction form
    20,231.06/30,338.88 = 6,186.80/x
  3. Step 3: Cross multiply
    20,231.06x = 30,338.88 × 6,186.80
  4. Step 4: Simplify right side
    20,231.06x = 187,700,582.78
  5. Step 5: Solve for x
    x = 187,700,582.78/20,231.06
  6. Step 6: Final answer
    x = 9,277.84

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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.