Home / 20,186.77-30,233.19-19,485.98

Finding the Fourth Proportional to 20,186.77, 30,233.19 and 19,485.98

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Solution

The fourth proportional to 20,186.77, 30,233.19 and 19,485.98 is: 29,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.77 : 30,233.19 = 19,485.98 : x
  2. Step 2: Convert to fraction form
    20,186.77/30,233.19 = 19,485.98/x
  3. Step 3: Cross multiply
    20,186.77x = 30,233.19 × 19,485.98
  4. Step 4: Simplify right side
    20,186.77x = 589,123,335.68
  5. Step 5: Solve for x
    x = 589,123,335.68/20,186.77
  6. Step 6: Final answer
    x = 29,183.64

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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.