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Finding the Fourth Proportional to 22,089.96, 33,134.94 and 20,738.28

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Solution

The fourth proportional to 22,089.96, 33,134.94 and 20,738.28 is: 31,107.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,089.96 : 33,134.94 = 20,738.28 : x
  2. Step 2: Convert to fraction form
    22,089.96/33,134.94 = 20,738.28/x
  3. Step 3: Cross multiply
    22,089.96x = 33,134.94 × 20,738.28
  4. Step 4: Simplify right side
    22,089.96x = 687,161,663.50
  5. Step 5: Solve for x
    x = 687,161,663.50/22,089.96
  6. Step 6: Final answer
    x = 31,107.42

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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.