Home / 22,007.20-33,019.92-12,145.60

Finding the Fourth Proportional to 22,007.20, 33,019.92 and 12,145.60

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Solution

The fourth proportional to 22,007.20, 33,019.92 and 12,145.60 is: 18,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,007.20 : 33,019.92 = 12,145.60 : x
  2. Step 2: Convert to fraction form
    22,007.20/33,019.92 = 12,145.60/x
  3. Step 3: Cross multiply
    22,007.20x = 33,019.92 × 12,145.60
  4. Step 4: Simplify right side
    22,007.20x = 401,046,740.35
  5. Step 5: Solve for x
    x = 401,046,740.35/22,007.20
  6. Step 6: Final answer
    x = 18,223.43

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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.