Home / 21,422.70-32,145.48-8,951.22

Finding the Fourth Proportional to 21,422.70, 32,145.48 and 8,951.22

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Solution

The fourth proportional to 21,422.70, 32,145.48 and 8,951.22 is: 13,431.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,422.70 : 32,145.48 = 8,951.22 : x
  2. Step 2: Convert to fraction form
    21,422.70/32,145.48 = 8,951.22/x
  3. Step 3: Cross multiply
    21,422.70x = 32,145.48 × 8,951.22
  4. Step 4: Simplify right side
    21,422.70x = 287,741,263.49
  5. Step 5: Solve for x
    x = 287,741,263.49/21,422.70
  6. Step 6: Final answer
    x = 13,431.61

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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.