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Finding the Fourth Proportional to 26,935, 40,406.88 and 7,961.56

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Solution

The fourth proportional to 26,935, 40,406.88 and 7,961.56 is: 11,943.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,935 : 40,406.88 = 7,961.56 : x
  2. Step 2: Convert to fraction form
    26,935/40,406.88 = 7,961.56/x
  3. Step 3: Cross multiply
    26,935x = 40,406.88 × 7,961.56
  4. Step 4: Simplify right side
    26,935x = 321,701,799.53
  5. Step 5: Solve for x
    x = 321,701,799.53/26,935
  6. Step 6: Final answer
    x = 11,943.63

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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.