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Finding the Fourth Proportional to 21,693.44, 32,540.15 and 11,325.44

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Solution

The fourth proportional to 21,693.44, 32,540.15 and 11,325.44 is: 16,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,693.44 : 32,540.15 = 11,325.44 : x
  2. Step 2: Convert to fraction form
    21,693.44/32,540.15 = 11,325.44/x
  3. Step 3: Cross multiply
    21,693.44x = 32,540.15 × 11,325.44
  4. Step 4: Simplify right side
    21,693.44x = 368,531,382.03
  5. Step 5: Solve for x
    x = 368,531,382.03/21,693.44
  6. Step 6: Final answer
    x = 16,988.15

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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.