Home / 43,685.43-65,416.97-28,872.15

Finding the Fourth Proportional to 43,685.43, 65,416.97 and 28,872.15

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Solution

The fourth proportional to 43,685.43, 65,416.97 and 28,872.15 is: 43,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,685.43 : 65,416.97 = 28,872.15 : x
  2. Step 2: Convert to fraction form
    43,685.43/65,416.97 = 28,872.15/x
  3. Step 3: Cross multiply
    43,685.43x = 65,416.97 × 28,872.15
  4. Step 4: Simplify right side
    43,685.43x = 1,888,728,426.02
  5. Step 5: Solve for x
    x = 1,888,728,426.02/43,685.43
  6. Step 6: Final answer
    x = 43,234.74

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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.