Home / 22,115.49-33,173.19-18,211.68

Finding the Fourth Proportional to 22,115.49, 33,173.19 and 18,211.68

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Solution

The fourth proportional to 22,115.49, 33,173.19 and 18,211.68 is: 27,317.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.49 : 33,173.19 = 18,211.68 : x
  2. Step 2: Convert to fraction form
    22,115.49/33,173.19 = 18,211.68/x
  3. Step 3: Cross multiply
    22,115.49x = 33,173.19 × 18,211.68
  4. Step 4: Simplify right side
    22,115.49x = 604,139,520.86
  5. Step 5: Solve for x
    x = 604,139,520.86/22,115.49
  6. Step 6: Final answer
    x = 27,317.48

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1.5x scale

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.