Home / 20,230.06-30,351.37-18,136.89

Finding the Fourth Proportional to 20,230.06, 30,351.37 and 18,136.89

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Solution

The fourth proportional to 20,230.06, 30,351.37 and 18,136.89 is: 27,210.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.06 : 30,351.37 = 18,136.89 : x
  2. Step 2: Convert to fraction form
    20,230.06/30,351.37 = 18,136.89/x
  3. Step 3: Cross multiply
    20,230.06x = 30,351.37 × 18,136.89
  4. Step 4: Simplify right side
    20,230.06x = 550,479,216.60
  5. Step 5: Solve for x
    x = 550,479,216.60/20,230.06
  6. Step 6: Final answer
    x = 27,210.95

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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.