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Finding the Fourth Proportional to 21,773.94, 32,653.62 and 8,630.88

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Solution

The fourth proportional to 21,773.94, 32,653.62 and 8,630.88 is: 12,943.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.94 : 32,653.62 = 8,630.88 : x
  2. Step 2: Convert to fraction form
    21,773.94/32,653.62 = 8,630.88/x
  3. Step 3: Cross multiply
    21,773.94x = 32,653.62 × 8,630.88
  4. Step 4: Simplify right side
    21,773.94x = 281,829,475.79
  5. Step 5: Solve for x
    x = 281,829,475.79/21,773.94
  6. Step 6: Final answer
    x = 12,943.43

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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.