Home / 28,736.36-43,104.60-7,959.92

Finding the Fourth Proportional to 28,736.36, 43,104.60 and 7,959.92

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Solution

The fourth proportional to 28,736.36, 43,104.60 and 7,959.92 is: 11,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,736.36 : 43,104.60 = 7,959.92 : x
  2. Step 2: Convert to fraction form
    28,736.36/43,104.60 = 7,959.92/x
  3. Step 3: Cross multiply
    28,736.36x = 43,104.60 × 7,959.92
  4. Step 4: Simplify right side
    28,736.36x = 343,109,167.63
  5. Step 5: Solve for x
    x = 343,109,167.63/28,736.36
  6. Step 6: Final answer
    x = 11,939.90

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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.