Home / 40,835.49-61,171.22-18,618.30

Finding the Fourth Proportional to 40,835.49, 61,171.22 and 18,618.30

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Solution

The fourth proportional to 40,835.49, 61,171.22 and 18,618.30 is: 27,890.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,835.49 : 61,171.22 = 18,618.30 : x
  2. Step 2: Convert to fraction form
    40,835.49/61,171.22 = 18,618.30/x
  3. Step 3: Cross multiply
    40,835.49x = 61,171.22 × 18,618.30
  4. Step 4: Simplify right side
    40,835.49x = 1,138,904,131.97
  5. Step 5: Solve for x
    x = 1,138,904,131.97/40,835.49
  6. Step 6: Final answer
    x = 27,890.06

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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.