Home / 21,961.28-32,946.24-7,166.22

Finding the Fourth Proportional to 21,961.28, 32,946.24 and 7,166.22

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Solution

The fourth proportional to 21,961.28, 32,946.24 and 7,166.22 is: 10,750.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.28 : 32,946.24 = 7,166.22 : x
  2. Step 2: Convert to fraction form
    21,961.28/32,946.24 = 7,166.22/x
  3. Step 3: Cross multiply
    21,961.28x = 32,946.24 × 7,166.22
  4. Step 4: Simplify right side
    21,961.28x = 236,100,092.66
  5. Step 5: Solve for x
    x = 236,100,092.66/21,961.28
  6. Step 6: Final answer
    x = 10,750.75

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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.