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Finding the Fourth Proportional to 22,019.80, 33,007.84 and 12,648.52

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Solution

The fourth proportional to 22,019.80, 33,007.84 and 12,648.52 is: 18,960.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019.80 : 33,007.84 = 12,648.52 : x
  2. Step 2: Convert to fraction form
    22,019.80/33,007.84 = 12,648.52/x
  3. Step 3: Cross multiply
    22,019.80x = 33,007.84 × 12,648.52
  4. Step 4: Simplify right side
    22,019.80x = 417,500,324.40
  5. Step 5: Solve for x
    x = 417,500,324.40/22,019.80
  6. Step 6: Final answer
    x = 18,960.22

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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.