Home / 21,997.14-32,998.98-7,958.22

Finding the Fourth Proportional to 21,997.14, 32,998.98 and 7,958.22

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Solution

The fourth proportional to 21,997.14, 32,998.98 and 7,958.22 is: 11,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.14 : 32,998.98 = 7,958.22 : x
  2. Step 2: Convert to fraction form
    21,997.14/32,998.98 = 7,958.22/x
  3. Step 3: Cross multiply
    21,997.14x = 32,998.98 × 7,958.22
  4. Step 4: Simplify right side
    21,997.14x = 262,613,142.62
  5. Step 5: Solve for x
    x = 262,613,142.62/21,997.14
  6. Step 6: Final answer
    x = 11,938.51

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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.