Home / 28,468.67-39,234.66-18,891.65

Finding the Fourth Proportional to 28,468.67, 39,234.66 and 18,891.65

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Solution

The fourth proportional to 28,468.67, 39,234.66 and 18,891.65 is: 26,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.67 : 39,234.66 = 18,891.65 : x
  2. Step 2: Convert to fraction form
    28,468.67/39,234.66 = 18,891.65/x
  3. Step 3: Cross multiply
    28,468.67x = 39,234.66 × 18,891.65
  4. Step 4: Simplify right side
    28,468.67x = 741,207,464.59
  5. Step 5: Solve for x
    x = 741,207,464.59/28,468.67
  6. Step 6: Final answer
    x = 26,035.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.