Home / 22,108.32-33,162.81-12,309.87

Finding the Fourth Proportional to 22,108.32, 33,162.81 and 12,309.87

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Solution

The fourth proportional to 22,108.32, 33,162.81 and 12,309.87 is: 18,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,108.32 : 33,162.81 = 12,309.87 : x
  2. Step 2: Convert to fraction form
    22,108.32/33,162.81 = 12,309.87/x
  3. Step 3: Cross multiply
    22,108.32x = 33,162.81 × 12,309.87
  4. Step 4: Simplify right side
    22,108.32x = 408,229,879.93
  5. Step 5: Solve for x
    x = 408,229,879.93/22,108.32
  6. Step 6: Final answer
    x = 18,464.99

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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.