Home / 28,739.97-43,092.15-12,091.43

Finding the Fourth Proportional to 28,739.97, 43,092.15 and 12,091.43

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Solution

The fourth proportional to 28,739.97, 43,092.15 and 12,091.43 is: 18,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,739.97 : 43,092.15 = 12,091.43 : x
  2. Step 2: Convert to fraction form
    28,739.97/43,092.15 = 12,091.43/x
  3. Step 3: Cross multiply
    28,739.97x = 43,092.15 × 12,091.43
  4. Step 4: Simplify right side
    28,739.97x = 521,045,499.81
  5. Step 5: Solve for x
    x = 521,045,499.81/28,739.97
  6. Step 6: Final answer
    x = 18,129.65

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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.