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Finding the Fourth Proportional to 18,018.40, 27,027.60 and 10,229.44

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Solution

The fourth proportional to 18,018.40, 27,027.60 and 10,229.44 is: 15,344.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.40 : 27,027.60 = 10,229.44 : x
  2. Step 2: Convert to fraction form
    18,018.40/27,027.60 = 10,229.44/x
  3. Step 3: Cross multiply
    18,018.40x = 27,027.60 × 10,229.44
  4. Step 4: Simplify right side
    18,018.40x = 276,477,212.54
  5. Step 5: Solve for x
    x = 276,477,212.54/18,018.40
  6. Step 6: Final answer
    x = 15,344.16

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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.