Home / 20,614.90-28,448.62-11,183.46

Finding the Fourth Proportional to 20,614.90, 28,448.62 and 11,183.46

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Solution

The fourth proportional to 20,614.90, 28,448.62 and 11,183.46 is: 15,433.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.90 : 28,448.62 = 11,183.46 : x
  2. Step 2: Convert to fraction form
    20,614.90/28,448.62 = 11,183.46/x
  3. Step 3: Cross multiply
    20,614.90x = 28,448.62 × 11,183.46
  4. Step 4: Simplify right side
    20,614.90x = 318,154,033.01
  5. Step 5: Solve for x
    x = 318,154,033.01/20,614.90
  6. Step 6: Final answer
    x = 15,433.21

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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.