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Finding the Fourth Proportional to 21,773.84, 32,662.25 and 8,626.19

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Solution

The fourth proportional to 21,773.84, 32,662.25 and 8,626.19 is: 12,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.84 : 32,662.25 = 8,626.19 : x
  2. Step 2: Convert to fraction form
    21,773.84/32,662.25 = 8,626.19/x
  3. Step 3: Cross multiply
    21,773.84x = 32,662.25 × 8,626.19
  4. Step 4: Simplify right side
    21,773.84x = 281,750,731.20
  5. Step 5: Solve for x
    x = 281,750,731.20/21,773.84
  6. Step 6: Final answer
    x = 12,939.87

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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.