Home / 21,996.40-33,002.70-8,858.20

Finding the Fourth Proportional to 21,996.40, 33,002.70 and 8,858.20

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Solution

The fourth proportional to 21,996.40, 33,002.70 and 8,858.20 is: 13,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,996.40 : 33,002.70 = 8,858.20 : x
  2. Step 2: Convert to fraction form
    21,996.40/33,002.70 = 8,858.20/x
  3. Step 3: Cross multiply
    21,996.40x = 33,002.70 × 8,858.20
  4. Step 4: Simplify right side
    21,996.40x = 292,344,517.14
  5. Step 5: Solve for x
    x = 292,344,517.14/21,996.40
  6. Step 6: Final answer
    x = 13,290.56

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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.