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Finding the Fourth Proportional to 22,019.72, 33,020.94 and 8,869.64

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Solution

The fourth proportional to 22,019.72, 33,020.94 and 8,869.64 is: 13,300.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,019.72 : 33,020.94 = 8,869.64 : x
  2. Step 2: Convert to fraction form
    22,019.72/33,020.94 = 8,869.64/x
  3. Step 3: Cross multiply
    22,019.72x = 33,020.94 × 8,869.64
  4. Step 4: Simplify right side
    22,019.72x = 292,883,850.26
  5. Step 5: Solve for x
    x = 292,883,850.26/22,019.72
  6. Step 6: Final answer
    x = 13,300.98

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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.