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Finding the Fourth Proportional to 21,773.28, 32,659.84 and 17,399.28

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Solution

The fourth proportional to 21,773.28, 32,659.84 and 17,399.28 is: 26,098.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.28 : 32,659.84 = 17,399.28 : x
  2. Step 2: Convert to fraction form
    21,773.28/32,659.84 = 17,399.28/x
  3. Step 3: Cross multiply
    21,773.28x = 32,659.84 × 17,399.28
  4. Step 4: Simplify right side
    21,773.28x = 568,257,700.92
  5. Step 5: Solve for x
    x = 568,257,700.92/21,773.28
  6. Step 6: Final answer
    x = 26,098.86

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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.