Home / 21,424.30-32,131.21-8,944.43

Finding the Fourth Proportional to 21,424.30, 32,131.21 and 8,944.43

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Solution

The fourth proportional to 21,424.30, 32,131.21 and 8,944.43 is: 13,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,424.30 : 32,131.21 = 8,944.43 : x
  2. Step 2: Convert to fraction form
    21,424.30/32,131.21 = 8,944.43/x
  3. Step 3: Cross multiply
    21,424.30x = 32,131.21 × 8,944.43
  4. Step 4: Simplify right side
    21,424.30x = 287,395,255.97
  5. Step 5: Solve for x
    x = 287,395,255.97/21,424.30
  6. Step 6: Final answer
    x = 13,414.45

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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.