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Finding the Fourth Proportional to 21,997.82, 32,998.08 and 8,850.18

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Solution

The fourth proportional to 21,997.82, 32,998.08 and 8,850.18 is: 13,275.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.82 : 32,998.08 = 8,850.18 : x
  2. Step 2: Convert to fraction form
    21,997.82/32,998.08 = 8,850.18/x
  3. Step 3: Cross multiply
    21,997.82x = 32,998.08 × 8,850.18
  4. Step 4: Simplify right side
    21,997.82x = 292,038,947.65
  5. Step 5: Solve for x
    x = 292,038,947.65/21,997.82
  6. Step 6: Final answer
    x = 13,275.81

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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.