Home / 20,229.56-30,350.62-18,136.39

Finding the Fourth Proportional to 20,229.56, 30,350.62 and 18,136.39

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Solution

The fourth proportional to 20,229.56, 30,350.62 and 18,136.39 is: 27,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.56 : 30,350.62 = 18,136.39 : x
  2. Step 2: Convert to fraction form
    20,229.56/30,350.62 = 18,136.39/x
  3. Step 3: Cross multiply
    20,229.56x = 30,350.62 × 18,136.39
  4. Step 4: Simplify right side
    20,229.56x = 550,450,438.63
  5. Step 5: Solve for x
    x = 550,450,438.63/20,229.56
  6. Step 6: Final answer
    x = 27,210.20

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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.