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Finding the Fourth Proportional to 22,130.80, 33,215.10 and 8,992.60

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Solution

The fourth proportional to 22,130.80, 33,215.10 and 8,992.60 is: 13,496.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.80 : 33,215.10 = 8,992.60 : x
  2. Step 2: Convert to fraction form
    22,130.80/33,215.10 = 8,992.60/x
  3. Step 3: Cross multiply
    22,130.80x = 33,215.10 × 8,992.60
  4. Step 4: Simplify right side
    22,130.80x = 298,690,108.26
  5. Step 5: Solve for x
    x = 298,690,108.26/22,130.80
  6. Step 6: Final answer
    x = 13,496.58

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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.