Home / 26,921.78-40,382.72-7,200.34

Finding the Fourth Proportional to 26,921.78, 40,382.72 and 7,200.34

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Solution

The fourth proportional to 26,921.78, 40,382.72 and 7,200.34 is: 10,800.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,921.78 : 40,382.72 = 7,200.34 : x
  2. Step 2: Convert to fraction form
    26,921.78/40,382.72 = 7,200.34/x
  3. Step 3: Cross multiply
    26,921.78x = 40,382.72 × 7,200.34
  4. Step 4: Simplify right side
    26,921.78x = 290,769,431.32
  5. Step 5: Solve for x
    x = 290,769,431.32/26,921.78
  6. Step 6: Final answer
    x = 10,800.53

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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.