Home / 28,516.73-42,760.43-9,791.71

Finding the Fourth Proportional to 28,516.73, 42,760.43 and 9,791.71

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Solution

The fourth proportional to 28,516.73, 42,760.43 and 9,791.71 is: 14,682.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,516.73 : 42,760.43 = 9,791.71 : x
  2. Step 2: Convert to fraction form
    28,516.73/42,760.43 = 9,791.71/x
  3. Step 3: Cross multiply
    28,516.73x = 42,760.43 × 9,791.71
  4. Step 4: Simplify right side
    28,516.73x = 418,697,758.70
  5. Step 5: Solve for x
    x = 418,697,758.70/28,516.73
  6. Step 6: Final answer
    x = 14,682.53

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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.