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Finding the Fourth Proportional to 26,427.62, 39,641.42 and 7,959.62

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Solution

The fourth proportional to 26,427.62, 39,641.42 and 7,959.62 is: 11,939.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,427.62 : 39,641.42 = 7,959.62 : x
  2. Step 2: Convert to fraction form
    26,427.62/39,641.42 = 7,959.62/x
  3. Step 3: Cross multiply
    26,427.62x = 39,641.42 × 7,959.62
  4. Step 4: Simplify right side
    26,427.62x = 315,530,461.15
  5. Step 5: Solve for x
    x = 315,530,461.15/26,427.62
  6. Step 6: Final answer
    x = 11,939.42

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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.