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Finding the Fourth Proportional to 22,021.66, 33,027.63 and 7,979.50

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Solution

The fourth proportional to 22,021.66, 33,027.63 and 7,979.50 is: 11,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.66 : 33,027.63 = 7,979.50 : x
  2. Step 2: Convert to fraction form
    22,021.66/33,027.63 = 7,979.50/x
  3. Step 3: Cross multiply
    22,021.66x = 33,027.63 × 7,979.50
  4. Step 4: Simplify right side
    22,021.66x = 263,543,973.59
  5. Step 5: Solve for x
    x = 263,543,973.59/22,021.66
  6. Step 6: Final answer
    x = 11,967.49

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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.