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Finding the Fourth Proportional to 21,843.92, 32,768.08 and 8,693.24

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Solution

The fourth proportional to 21,843.92, 32,768.08 and 8,693.24 is: 13,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,843.92 : 32,768.08 = 8,693.24 : x
  2. Step 2: Convert to fraction form
    21,843.92/32,768.08 = 8,693.24/x
  3. Step 3: Cross multiply
    21,843.92x = 32,768.08 × 8,693.24
  4. Step 4: Simplify right side
    21,843.92x = 284,860,598.21
  5. Step 5: Solve for x
    x = 284,860,598.21/21,843.92
  6. Step 6: Final answer
    x = 13,040.73

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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.