Home / 21,132.60-31,700.52-6,340.44

Finding the Fourth Proportional to 21,132.60, 31,700.52 and 6,340.44

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Solution

The fourth proportional to 21,132.60, 31,700.52 and 6,340.44 is: 9,511.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.60 : 31,700.52 = 6,340.44 : x
  2. Step 2: Convert to fraction form
    21,132.60/31,700.52 = 6,340.44/x
  3. Step 3: Cross multiply
    21,132.60x = 31,700.52 × 6,340.44
  4. Step 4: Simplify right side
    21,132.60x = 200,995,245.03
  5. Step 5: Solve for x
    x = 200,995,245.03/21,132.60
  6. Step 6: Final answer
    x = 9,511.15

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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.