Home / 28,845.89-43,274.18-9,129.41

Finding the Fourth Proportional to 28,845.89, 43,274.18 and 9,129.41

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Solution

The fourth proportional to 28,845.89, 43,274.18 and 9,129.41 is: 13,695.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,845.89 : 43,274.18 = 9,129.41 : x
  2. Step 2: Convert to fraction form
    28,845.89/43,274.18 = 9,129.41/x
  3. Step 3: Cross multiply
    28,845.89x = 43,274.18 × 9,129.41
  4. Step 4: Simplify right side
    28,845.89x = 395,067,685.99
  5. Step 5: Solve for x
    x = 395,067,685.99/28,845.89
  6. Step 6: Final answer
    x = 13,695.81

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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.