Home / 40,136.37-55,389.72-22,230.99

Finding the Fourth Proportional to 40,136.37, 55,389.72 and 22,230.99

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Solution

The fourth proportional to 40,136.37, 55,389.72 and 22,230.99 is: 30,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,136.37 : 55,389.72 = 22,230.99 : x
  2. Step 2: Convert to fraction form
    40,136.37/55,389.72 = 22,230.99/x
  3. Step 3: Cross multiply
    40,136.37x = 55,389.72 × 22,230.99
  4. Step 4: Simplify right side
    40,136.37x = 1,231,368,311.42
  5. Step 5: Solve for x
    x = 1,231,368,311.42/40,136.37
  6. Step 6: Final answer
    x = 30,679.61

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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.