Home / 21,749.69-32,621.50-6,959.90

Finding the Fourth Proportional to 21,749.69, 32,621.50 and 6,959.90

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Solution

The fourth proportional to 21,749.69, 32,621.50 and 6,959.90 is: 10,438.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749.69 : 32,621.50 = 6,959.90 : x
  2. Step 2: Convert to fraction form
    21,749.69/32,621.50 = 6,959.90/x
  3. Step 3: Cross multiply
    21,749.69x = 32,621.50 × 6,959.90
  4. Step 4: Simplify right side
    21,749.69x = 227,042,377.85
  5. Step 5: Solve for x
    x = 227,042,377.85/21,749.69
  6. Step 6: Final answer
    x = 10,438.88

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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.