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Finding the Fourth Proportional to 22,021.92, 33,031.68 and 7,228.88

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Solution

The fourth proportional to 22,021.92, 33,031.68 and 7,228.88 is: 10,842.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.92 : 33,031.68 = 7,228.88 : x
  2. Step 2: Convert to fraction form
    22,021.92/33,031.68 = 7,228.88/x
  3. Step 3: Cross multiply
    22,021.92x = 33,031.68 × 7,228.88
  4. Step 4: Simplify right side
    22,021.92x = 238,782,050.92
  5. Step 5: Solve for x
    x = 238,782,050.92/22,021.92
  6. Step 6: Final answer
    x = 10,842.93

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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.