Home / 20,662.55-30,993.23-13,892.64

Finding the Fourth Proportional to 20,662.55, 30,993.23 and 13,892.64

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Solution

The fourth proportional to 20,662.55, 30,993.23 and 13,892.64 is: 20,838.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.55 : 30,993.23 = 13,892.64 : x
  2. Step 2: Convert to fraction form
    20,662.55/30,993.23 = 13,892.64/x
  3. Step 3: Cross multiply
    20,662.55x = 30,993.23 × 13,892.64
  4. Step 4: Simplify right side
    20,662.55x = 430,577,821.56
  5. Step 5: Solve for x
    x = 430,577,821.56/20,662.55
  6. Step 6: Final answer
    x = 20,838.57

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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.