Home / 28,731.87-43,097.66-7,384.56

Finding the Fourth Proportional to 28,731.87, 43,097.66 and 7,384.56

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Solution

The fourth proportional to 28,731.87, 43,097.66 and 7,384.56 is: 11,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,731.87 : 43,097.66 = 7,384.56 : x
  2. Step 2: Convert to fraction form
    28,731.87/43,097.66 = 7,384.56/x
  3. Step 3: Cross multiply
    28,731.87x = 43,097.66 × 7,384.56
  4. Step 4: Simplify right side
    28,731.87x = 318,257,219.21
  5. Step 5: Solve for x
    x = 318,257,219.21/28,731.87
  6. Step 6: Final answer
    x = 11,076.80

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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.