Home / 30,321.27-45,481.91-8,134.16

Finding the Fourth Proportional to 30,321.27, 45,481.91 and 8,134.16

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Solution

The fourth proportional to 30,321.27, 45,481.91 and 8,134.16 is: 12,201.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.27 : 45,481.91 = 8,134.16 : x
  2. Step 2: Convert to fraction form
    30,321.27/45,481.91 = 8,134.16/x
  3. Step 3: Cross multiply
    30,321.27x = 45,481.91 × 8,134.16
  4. Step 4: Simplify right side
    30,321.27x = 369,956,864.97
  5. Step 5: Solve for x
    x = 369,956,864.97/30,321.27
  6. Step 6: Final answer
    x = 12,201.23

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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.