Home / 22,135.80-33,212.60-8,989.20

Finding the Fourth Proportional to 22,135.80, 33,212.60 and 8,989.20

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Solution

The fourth proportional to 22,135.80, 33,212.60 and 8,989.20 is: 13,487.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,135.80 : 33,212.60 = 8,989.20 : x
  2. Step 2: Convert to fraction form
    22,135.80/33,212.60 = 8,989.20/x
  3. Step 3: Cross multiply
    22,135.80x = 33,212.60 × 8,989.20
  4. Step 4: Simplify right side
    22,135.80x = 298,554,703.92
  5. Step 5: Solve for x
    x = 298,554,703.92/22,135.80
  6. Step 6: Final answer
    x = 13,487.41

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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.