Home / 22,279.92-30,735.36-15,195.12

Finding the Fourth Proportional to 22,279.92, 30,735.36 and 15,195.12

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Solution

The fourth proportional to 22,279.92, 30,735.36 and 15,195.12 is: 20,961.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.92 : 30,735.36 = 15,195.12 : x
  2. Step 2: Convert to fraction form
    22,279.92/30,735.36 = 15,195.12/x
  3. Step 3: Cross multiply
    22,279.92x = 30,735.36 × 15,195.12
  4. Step 4: Simplify right side
    22,279.92x = 467,027,483.44
  5. Step 5: Solve for x
    x = 467,027,483.44/22,279.92
  6. Step 6: Final answer
    x = 20,961.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.