Home / 39,954.78-59,935.50-11,491.86

Finding the Fourth Proportional to 39,954.78, 59,935.50 and 11,491.86

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Solution

The fourth proportional to 39,954.78, 59,935.50 and 11,491.86 is: 17,238.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,954.78 : 59,935.50 = 11,491.86 : x
  2. Step 2: Convert to fraction form
    39,954.78/59,935.50 = 11,491.86/x
  3. Step 3: Cross multiply
    39,954.78x = 59,935.50 × 11,491.86
  4. Step 4: Simplify right side
    39,954.78x = 688,770,375.03
  5. Step 5: Solve for x
    x = 688,770,375.03/39,954.78
  6. Step 6: Final answer
    x = 17,238.75

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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.