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Finding the Fourth Proportional to 21,736.68, 32,608.44 and 8,589.12

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Solution

The fourth proportional to 21,736.68, 32,608.44 and 8,589.12 is: 12,885.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.68 : 32,608.44 = 8,589.12 : x
  2. Step 2: Convert to fraction form
    21,736.68/32,608.44 = 8,589.12/x
  3. Step 3: Cross multiply
    21,736.68x = 32,608.44 × 8,589.12
  4. Step 4: Simplify right side
    21,736.68x = 280,077,804.17
  5. Step 5: Solve for x
    x = 280,077,804.17/21,736.68
  6. Step 6: Final answer
    x = 12,885.03

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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.