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Finding the Fourth Proportional to 21,963.45, 32,963.54 and 19,896.74

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Solution

The fourth proportional to 21,963.45, 32,963.54 and 19,896.74 is: 29,861.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,963.45 : 32,963.54 = 19,896.74 : x
  2. Step 2: Convert to fraction form
    21,963.45/32,963.54 = 19,896.74/x
  3. Step 3: Cross multiply
    21,963.45x = 32,963.54 × 19,896.74
  4. Step 4: Simplify right side
    21,963.45x = 655,866,720.56
  5. Step 5: Solve for x
    x = 655,866,720.56/21,963.45
  6. Step 6: Final answer
    x = 29,861.73

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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.