Home / 34,238.78-51,287.42-20,155.41

Finding the Fourth Proportional to 34,238.78, 51,287.42 and 20,155.41

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Solution

The fourth proportional to 34,238.78, 51,287.42 and 20,155.41 is: 30,191.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,238.78 : 51,287.42 = 20,155.41 : x
  2. Step 2: Convert to fraction form
    34,238.78/51,287.42 = 20,155.41/x
  3. Step 3: Cross multiply
    34,238.78x = 51,287.42 × 20,155.41
  4. Step 4: Simplify right side
    34,238.78x = 1,033,718,977.94
  5. Step 5: Solve for x
    x = 1,033,718,977.94/34,238.78
  6. Step 6: Final answer
    x = 30,191.47

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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.