Home / 36,318.74-50,121.14-20,186.36

Finding the Fourth Proportional to 36,318.74, 50,121.14 and 20,186.36

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Solution

The fourth proportional to 36,318.74, 50,121.14 and 20,186.36 is: 27,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318.74 : 50,121.14 = 20,186.36 : x
  2. Step 2: Convert to fraction form
    36,318.74/50,121.14 = 20,186.36/x
  3. Step 3: Cross multiply
    36,318.74x = 50,121.14 × 20,186.36
  4. Step 4: Simplify right side
    36,318.74x = 1,011,763,551.42
  5. Step 5: Solve for x
    x = 1,011,763,551.42/36,318.74
  6. Step 6: Final answer
    x = 27,857.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.