Home / 22,137.80-33,215.60-8,991.20

Finding the Fourth Proportional to 22,137.80, 33,215.60 and 8,991.20

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Solution

The fourth proportional to 22,137.80, 33,215.60 and 8,991.20 is: 13,490.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,137.80 : 33,215.60 = 8,991.20 : x
  2. Step 2: Convert to fraction form
    22,137.80/33,215.60 = 8,991.20/x
  3. Step 3: Cross multiply
    22,137.80x = 33,215.60 × 8,991.20
  4. Step 4: Simplify right side
    22,137.80x = 298,648,102.72
  5. Step 5: Solve for x
    x = 298,648,102.72/22,137.80
  6. Step 6: Final answer
    x = 13,490.41

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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.