Home / 36,493.14-54,754.19-13,121.40

Finding the Fourth Proportional to 36,493.14, 54,754.19 and 13,121.40

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Solution

The fourth proportional to 36,493.14, 54,754.19 and 13,121.40 is: 19,687.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,493.14 : 54,754.19 = 13,121.40 : x
  2. Step 2: Convert to fraction form
    36,493.14/54,754.19 = 13,121.40/x
  3. Step 3: Cross multiply
    36,493.14x = 54,754.19 × 13,121.40
  4. Step 4: Simplify right side
    36,493.14x = 718,451,628.67
  5. Step 5: Solve for x
    x = 718,451,628.67/36,493.14
  6. Step 6: Final answer
    x = 19,687.31

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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.