Home / 43,987.62-65,921.22-18,665.94

Finding the Fourth Proportional to 43,987.62, 65,921.22 and 18,665.94

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Solution

The fourth proportional to 43,987.62, 65,921.22 and 18,665.94 is: 27,973.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,987.62 : 65,921.22 = 18,665.94 : x
  2. Step 2: Convert to fraction form
    43,987.62/65,921.22 = 18,665.94/x
  3. Step 3: Cross multiply
    43,987.62x = 65,921.22 × 18,665.94
  4. Step 4: Simplify right side
    43,987.62x = 1,230,481,537.25
  5. Step 5: Solve for x
    x = 1,230,481,537.25/43,987.62
  6. Step 6: Final answer
    x = 27,973.36

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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.