Home / 22,143.12-33,221.20-6,561.16

Finding the Fourth Proportional to 22,143.12, 33,221.20 and 6,561.16

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Solution

The fourth proportional to 22,143.12, 33,221.20 and 6,561.16 is: 9,843.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.12 : 33,221.20 = 6,561.16 : x
  2. Step 2: Convert to fraction form
    22,143.12/33,221.20 = 6,561.16/x
  3. Step 3: Cross multiply
    22,143.12x = 33,221.20 × 6,561.16
  4. Step 4: Simplify right side
    22,143.12x = 217,969,608.59
  5. Step 5: Solve for x
    x = 217,969,608.59/22,143.12
  6. Step 6: Final answer
    x = 9,843.67

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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.