Home / 21,958.83-32,939.87-7,927.20

Finding the Fourth Proportional to 21,958.83, 32,939.87 and 7,927.20

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Solution

The fourth proportional to 21,958.83, 32,939.87 and 7,927.20 is: 11,891.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,958.83 : 32,939.87 = 7,927.20 : x
  2. Step 2: Convert to fraction form
    21,958.83/32,939.87 = 7,927.20/x
  3. Step 3: Cross multiply
    21,958.83x = 32,939.87 × 7,927.20
  4. Step 4: Simplify right side
    21,958.83x = 261,120,897.83
  5. Step 5: Solve for x
    x = 261,120,897.83/21,958.83
  6. Step 6: Final answer
    x = 11,891.38

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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.