Home / 34,136.78-51,221.39-15,422.54

Finding the Fourth Proportional to 34,136.78, 51,221.39 and 15,422.54

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Solution

The fourth proportional to 34,136.78, 51,221.39 and 15,422.54 is: 23,141.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,136.78 : 51,221.39 = 15,422.54 : x
  2. Step 2: Convert to fraction form
    34,136.78/51,221.39 = 15,422.54/x
  3. Step 3: Cross multiply
    34,136.78x = 51,221.39 × 15,422.54
  4. Step 4: Simplify right side
    34,136.78x = 789,963,936.13
  5. Step 5: Solve for x
    x = 789,963,936.13/34,136.78
  6. Step 6: Final answer
    x = 23,141.14

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1.5x scale

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.