Home / 26,319.39-39,481.62-10,520.65

Finding the Fourth Proportional to 26,319.39, 39,481.62 and 10,520.65

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Solution

The fourth proportional to 26,319.39, 39,481.62 and 10,520.65 is: 15,781.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,319.39 : 39,481.62 = 10,520.65 : x
  2. Step 2: Convert to fraction form
    26,319.39/39,481.62 = 10,520.65/x
  3. Step 3: Cross multiply
    26,319.39x = 39,481.62 × 10,520.65
  4. Step 4: Simplify right side
    26,319.39x = 415,372,305.45
  5. Step 5: Solve for x
    x = 415,372,305.45/26,319.39
  6. Step 6: Final answer
    x = 15,781.99

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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.