Home / 47,530.38-71,295.37-11,991.78

Finding the Fourth Proportional to 47,530.38, 71,295.37 and 11,991.78

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Solution

The fourth proportional to 47,530.38, 71,295.37 and 11,991.78 is: 17,987.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,530.38 : 71,295.37 = 11,991.78 : x
  2. Step 2: Convert to fraction form
    47,530.38/71,295.37 = 11,991.78/x
  3. Step 3: Cross multiply
    47,530.38x = 71,295.37 × 11,991.78
  4. Step 4: Simplify right side
    47,530.38x = 854,958,429.53
  5. Step 5: Solve for x
    x = 854,958,429.53/47,530.38
  6. Step 6: Final answer
    x = 17,987.62

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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.