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Finding the Fourth Proportional to 26,559.54, 39,839.28 and 7,839.81

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Solution

The fourth proportional to 26,559.54, 39,839.28 and 7,839.81 is: 11,759.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,559.54 : 39,839.28 = 7,839.81 : x
  2. Step 2: Convert to fraction form
    26,559.54/39,839.28 = 7,839.81/x
  3. Step 3: Cross multiply
    26,559.54x = 39,839.28 × 7,839.81
  4. Step 4: Simplify right side
    26,559.54x = 312,332,385.74
  5. Step 5: Solve for x
    x = 312,332,385.74/26,559.54
  6. Step 6: Final answer
    x = 11,759.71

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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.