Home / 21,985.44-32,974.96-6,398.88

Finding the Fourth Proportional to 21,985.44, 32,974.96 and 6,398.88

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Solution

The fourth proportional to 21,985.44, 32,974.96 and 6,398.88 is: 9,597.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985.44 : 32,974.96 = 6,398.88 : x
  2. Step 2: Convert to fraction form
    21,985.44/32,974.96 = 6,398.88/x
  3. Step 3: Cross multiply
    21,985.44x = 32,974.96 × 6,398.88
  4. Step 4: Simplify right side
    21,985.44x = 211,002,812.04
  5. Step 5: Solve for x
    x = 211,002,812.04/21,985.44
  6. Step 6: Final answer
    x = 9,597.39

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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.