Home / 21,969.05-32,958.79-7,177.95

Finding the Fourth Proportional to 21,969.05, 32,958.79 and 7,177.95

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Solution

The fourth proportional to 21,969.05, 32,958.79 and 7,177.95 is: 10,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969.05 : 32,958.79 = 7,177.95 : x
  2. Step 2: Convert to fraction form
    21,969.05/32,958.79 = 7,177.95/x
  3. Step 3: Cross multiply
    21,969.05x = 32,958.79 × 7,177.95
  4. Step 4: Simplify right side
    21,969.05x = 236,576,546.68
  5. Step 5: Solve for x
    x = 236,576,546.68/21,969.05
  6. Step 6: Final answer
    x = 10,768.63

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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.