Home / 28,716.82-43,076.02-7,940.32

Finding the Fourth Proportional to 28,716.82, 43,076.02 and 7,940.32

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Solution

The fourth proportional to 28,716.82, 43,076.02 and 7,940.32 is: 11,910.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,716.82 : 43,076.02 = 7,940.32 : x
  2. Step 2: Convert to fraction form
    28,716.82/43,076.02 = 7,940.32/x
  3. Step 3: Cross multiply
    28,716.82x = 43,076.02 × 7,940.32
  4. Step 4: Simplify right side
    28,716.82x = 342,037,383.13
  5. Step 5: Solve for x
    x = 342,037,383.13/28,716.82
  6. Step 6: Final answer
    x = 11,910.70

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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.