Home / 27,221.70-40,766.94-18,429.96

Finding the Fourth Proportional to 27,221.70, 40,766.94 and 18,429.96

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Solution

The fourth proportional to 27,221.70, 40,766.94 and 18,429.96 is: 27,600.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,221.70 : 40,766.94 = 18,429.96 : x
  2. Step 2: Convert to fraction form
    27,221.70/40,766.94 = 18,429.96/x
  3. Step 3: Cross multiply
    27,221.70x = 40,766.94 × 18,429.96
  4. Step 4: Simplify right side
    27,221.70x = 751,333,073.52
  5. Step 5: Solve for x
    x = 751,333,073.52/27,221.70
  6. Step 6: Final answer
    x = 27,600.52

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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.