Home / 29,379.86-40,540.11-17,280.89

Finding the Fourth Proportional to 29,379.86, 40,540.11 and 17,280.89

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Solution

The fourth proportional to 29,379.86, 40,540.11 and 17,280.89 is: 23,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,379.86 : 40,540.11 = 17,280.89 : x
  2. Step 2: Convert to fraction form
    29,379.86/40,540.11 = 17,280.89/x
  3. Step 3: Cross multiply
    29,379.86x = 40,540.11 × 17,280.89
  4. Step 4: Simplify right side
    29,379.86x = 700,568,978.80
  5. Step 5: Solve for x
    x = 700,568,978.80/29,379.86
  6. Step 6: Final answer
    x = 23,845.22

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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.