Home / 22,221.12-33,336.36-8,370

Finding the Fourth Proportional to 22,221.12, 33,336.36 and 8,370

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Solution

The fourth proportional to 22,221.12, 33,336.36 and 8,370 is: 12,556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.12 : 33,336.36 = 8,370 : x
  2. Step 2: Convert to fraction form
    22,221.12/33,336.36 = 8,370/x
  3. Step 3: Cross multiply
    22,221.12x = 33,336.36 × 8,370
  4. Step 4: Simplify right side
    22,221.12x = 279,025,333.20
  5. Step 5: Solve for x
    x = 279,025,333.20/22,221.12
  6. Step 6: Final answer
    x = 12,556.76

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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.