Home / 40,835.99-61,171.97-18,618.80

Finding the Fourth Proportional to 40,835.99, 61,171.97 and 18,618.80

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Solution

The fourth proportional to 40,835.99, 61,171.97 and 18,618.80 is: 27,890.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,835.99 : 61,171.97 = 18,618.80 : x
  2. Step 2: Convert to fraction form
    40,835.99/61,171.97 = 18,618.80/x
  3. Step 3: Cross multiply
    40,835.99x = 61,171.97 × 18,618.80
  4. Step 4: Simplify right side
    40,835.99x = 1,138,948,581.94
  5. Step 5: Solve for x
    x = 1,138,948,581.94/40,835.99
  6. Step 6: Final answer
    x = 27,890.80

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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.