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Finding the Fourth Proportional to 21,905.44, 32,857.44 and 6,324.64

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Solution

The fourth proportional to 21,905.44, 32,857.44 and 6,324.64 is: 9,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905.44 : 32,857.44 = 6,324.64 : x
  2. Step 2: Convert to fraction form
    21,905.44/32,857.44 = 6,324.64/x
  3. Step 3: Cross multiply
    21,905.44x = 32,857.44 × 6,324.64
  4. Step 4: Simplify right side
    21,905.44x = 207,811,479.32
  5. Step 5: Solve for x
    x = 207,811,479.32/21,905.44
  6. Step 6: Final answer
    x = 9,486.75

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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.