Home / 21,997.62-33,002.10-7,769.70

Finding the Fourth Proportional to 21,997.62, 33,002.10 and 7,769.70

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Solution

The fourth proportional to 21,997.62, 33,002.10 and 7,769.70 is: 11,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.62 : 33,002.10 = 7,769.70 : x
  2. Step 2: Convert to fraction form
    21,997.62/33,002.10 = 7,769.70/x
  3. Step 3: Cross multiply
    21,997.62x = 33,002.10 × 7,769.70
  4. Step 4: Simplify right side
    21,997.62x = 256,416,416.37
  5. Step 5: Solve for x
    x = 256,416,416.37/21,997.62
  6. Step 6: Final answer
    x = 11,656.55

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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.