Home / 28,939.39-43,410.76-11,170.15

Finding the Fourth Proportional to 28,939.39, 43,410.76 and 11,170.15

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Solution

The fourth proportional to 28,939.39, 43,410.76 and 11,170.15 is: 16,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.39 : 43,410.76 = 11,170.15 : x
  2. Step 2: Convert to fraction form
    28,939.39/43,410.76 = 11,170.15/x
  3. Step 3: Cross multiply
    28,939.39x = 43,410.76 × 11,170.15
  4. Step 4: Simplify right side
    28,939.39x = 484,904,555.08
  5. Step 5: Solve for x
    x = 484,904,555.08/28,939.39
  6. Step 6: Final answer
    x = 16,755.87

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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.