Home / 20,163.10-30,244.86-7,015.90

Finding the Fourth Proportional to 20,163.10, 30,244.86 and 7,015.90

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Solution

The fourth proportional to 20,163.10, 30,244.86 and 7,015.90 is: 10,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.10 : 30,244.86 = 7,015.90 : x
  2. Step 2: Convert to fraction form
    20,163.10/30,244.86 = 7,015.90/x
  3. Step 3: Cross multiply
    20,163.10x = 30,244.86 × 7,015.90
  4. Step 4: Simplify right side
    20,163.10x = 212,194,913.27
  5. Step 5: Solve for x
    x = 212,194,913.27/20,163.10
  6. Step 6: Final answer
    x = 10,523.92

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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.