Home / 20,772.55-31,136.44-10,076.26

Finding the Fourth Proportional to 20,772.55, 31,136.44 and 10,076.26

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Solution

The fourth proportional to 20,772.55, 31,136.44 and 10,076.26 is: 15,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.55 : 31,136.44 = 10,076.26 : x
  2. Step 2: Convert to fraction form
    20,772.55/31,136.44 = 10,076.26/x
  3. Step 3: Cross multiply
    20,772.55x = 31,136.44 × 10,076.26
  4. Step 4: Simplify right side
    20,772.55x = 313,738,864.91
  5. Step 5: Solve for x
    x = 313,738,864.91/20,772.55
  6. Step 6: Final answer
    x = 15,103.53

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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.