Home / 21,967.20-32,954.40-7,172.82

Finding the Fourth Proportional to 21,967.20, 32,954.40 and 7,172.82

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Solution

The fourth proportional to 21,967.20, 32,954.40 and 7,172.82 is: 10,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.20 : 32,954.40 = 7,172.82 : x
  2. Step 2: Convert to fraction form
    21,967.20/32,954.40 = 7,172.82/x
  3. Step 3: Cross multiply
    21,967.20x = 32,954.40 × 7,172.82
  4. Step 4: Simplify right side
    21,967.20x = 236,375,979.41
  5. Step 5: Solve for x
    x = 236,375,979.41/21,967.20
  6. Step 6: Final answer
    x = 10,760.41

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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.