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Finding the Fourth Proportional to 21,753.96, 32,645.51 and 13,968.24

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Solution

The fourth proportional to 21,753.96, 32,645.51 and 13,968.24 is: 20,961.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.96 : 32,645.51 = 13,968.24 : x
  2. Step 2: Convert to fraction form
    21,753.96/32,645.51 = 13,968.24/x
  3. Step 3: Cross multiply
    21,753.96x = 32,645.51 × 13,968.24
  4. Step 4: Simplify right side
    21,753.96x = 456,000,318.60
  5. Step 5: Solve for x
    x = 456,000,318.60/21,753.96
  6. Step 6: Final answer
    x = 20,961.72

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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.