Home / 22,291.20-33,436.80-9,136.80

Finding the Fourth Proportional to 22,291.20, 33,436.80 and 9,136.80

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Solution

The fourth proportional to 22,291.20, 33,436.80 and 9,136.80 is: 13,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,291.20 : 33,436.80 = 9,136.80 : x
  2. Step 2: Convert to fraction form
    22,291.20/33,436.80 = 9,136.80/x
  3. Step 3: Cross multiply
    22,291.20x = 33,436.80 × 9,136.80
  4. Step 4: Simplify right side
    22,291.20x = 305,505,354.24
  5. Step 5: Solve for x
    x = 305,505,354.24/22,291.20
  6. Step 6: Final answer
    x = 13,705.20

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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.