Home / 36,318.96-54,489.38-12,942.36

Finding the Fourth Proportional to 36,318.96, 54,489.38 and 12,942.36

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Solution

The fourth proportional to 36,318.96, 54,489.38 and 12,942.36 is: 19,417.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,318.96 : 54,489.38 = 12,942.36 : x
  2. Step 2: Convert to fraction form
    36,318.96/54,489.38 = 12,942.36/x
  3. Step 3: Cross multiply
    36,318.96x = 54,489.38 × 12,942.36
  4. Step 4: Simplify right side
    36,318.96x = 705,221,172.14
  5. Step 5: Solve for x
    x = 705,221,172.14/36,318.96
  6. Step 6: Final answer
    x = 19,417.44

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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.