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Finding the Fourth Proportional to 21,347.52, 32,025.42 and 8,198.91

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Solution

The fourth proportional to 21,347.52, 32,025.42 and 8,198.91 is: 12,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.52 : 32,025.42 = 8,198.91 : x
  2. Step 2: Convert to fraction form
    21,347.52/32,025.42 = 8,198.91/x
  3. Step 3: Cross multiply
    21,347.52x = 32,025.42 × 8,198.91
  4. Step 4: Simplify right side
    21,347.52x = 262,573,536.29
  5. Step 5: Solve for x
    x = 262,573,536.29/21,347.52
  6. Step 6: Final answer
    x = 12,299.96

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1.5x scale

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.