Home / 22,811.82-34,278.48-12,289.92

Finding the Fourth Proportional to 22,811.82, 34,278.48 and 12,289.92

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Solution

The fourth proportional to 22,811.82, 34,278.48 and 12,289.92 is: 18,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,811.82 : 34,278.48 = 12,289.92 : x
  2. Step 2: Convert to fraction form
    22,811.82/34,278.48 = 12,289.92/x
  3. Step 3: Cross multiply
    22,811.82x = 34,278.48 × 12,289.92
  4. Step 4: Simplify right side
    22,811.82x = 421,279,776.92
  5. Step 5: Solve for x
    x = 421,279,776.92/22,811.82
  6. Step 6: Final answer
    x = 18,467.61

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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.