Home / 39,136.37-54,008.57-21,231.52

Finding the Fourth Proportional to 39,136.37, 54,008.57 and 21,231.52

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Solution

The fourth proportional to 39,136.37, 54,008.57 and 21,231.52 is: 29,299.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,136.37 : 54,008.57 = 21,231.52 : x
  2. Step 2: Convert to fraction form
    39,136.37/54,008.57 = 21,231.52/x
  3. Step 3: Cross multiply
    39,136.37x = 54,008.57 × 21,231.52
  4. Step 4: Simplify right side
    39,136.37x = 1,146,683,952.18
  5. Step 5: Solve for x
    x = 1,146,683,952.18/39,136.37
  6. Step 6: Final answer
    x = 29,299.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.