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Finding the Fourth Proportional to 21,862.44, 32,797.44 and 12,512.88

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Solution

The fourth proportional to 21,862.44, 32,797.44 and 12,512.88 is: 18,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,862.44 : 32,797.44 = 12,512.88 : x
  2. Step 2: Convert to fraction form
    21,862.44/32,797.44 = 12,512.88/x
  3. Step 3: Cross multiply
    21,862.44x = 32,797.44 × 12,512.88
  4. Step 4: Simplify right side
    21,862.44x = 410,390,431.03
  5. Step 5: Solve for x
    x = 410,390,431.03/21,862.44
  6. Step 6: Final answer
    x = 18,771.48

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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.