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Finding the Fourth Proportional to 21,753.70, 32,630.85 and 6,171.32

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Solution

The fourth proportional to 21,753.70, 32,630.85 and 6,171.32 is: 9,257.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.70 : 32,630.85 = 6,171.32 : x
  2. Step 2: Convert to fraction form
    21,753.70/32,630.85 = 6,171.32/x
  3. Step 3: Cross multiply
    21,753.70x = 32,630.85 × 6,171.32
  4. Step 4: Simplify right side
    21,753.70x = 201,375,498.80
  5. Step 5: Solve for x
    x = 201,375,498.80/21,753.70
  6. Step 6: Final answer
    x = 9,257.07

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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.