Home / 21,730.72-32,591.04-6,940.96

Finding the Fourth Proportional to 21,730.72, 32,591.04 and 6,940.96

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Solution

The fourth proportional to 21,730.72, 32,591.04 and 6,940.96 is: 10,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,730.72 : 32,591.04 = 6,940.96 : x
  2. Step 2: Convert to fraction form
    21,730.72/32,591.04 = 6,940.96/x
  3. Step 3: Cross multiply
    21,730.72x = 32,591.04 × 6,940.96
  4. Step 4: Simplify right side
    21,730.72x = 226,213,105.00
  5. Step 5: Solve for x
    x = 226,213,105.00/21,730.72
  6. Step 6: Final answer
    x = 10,409.83

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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.