Home / 29,157.21-43,728.51-8,380.71

Finding the Fourth Proportional to 29,157.21, 43,728.51 and 8,380.71

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Solution

The fourth proportional to 29,157.21, 43,728.51 and 8,380.71 is: 12,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,157.21 : 43,728.51 = 8,380.71 : x
  2. Step 2: Convert to fraction form
    29,157.21/43,728.51 = 8,380.71/x
  3. Step 3: Cross multiply
    29,157.21x = 43,728.51 × 8,380.71
  4. Step 4: Simplify right side
    29,157.21x = 366,475,961.04
  5. Step 5: Solve for x
    x = 366,475,961.04/29,157.21
  6. Step 6: Final answer
    x = 12,568.97

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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.