Home / 22,142.20-33,214.92-8,991.04

Finding the Fourth Proportional to 22,142.20, 33,214.92 and 8,991.04

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Solution

The fourth proportional to 22,142.20, 33,214.92 and 8,991.04 is: 13,487.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.20 : 33,214.92 = 8,991.04 : x
  2. Step 2: Convert to fraction form
    22,142.20/33,214.92 = 8,991.04/x
  3. Step 3: Cross multiply
    22,142.20x = 33,214.92 × 8,991.04
  4. Step 4: Simplify right side
    22,142.20x = 298,636,674.32
  5. Step 5: Solve for x
    x = 298,636,674.32/22,142.20
  6. Step 6: Final answer
    x = 13,487.22

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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.