Home / 20,096.72-30,163.74-10,243.40

Finding the Fourth Proportional to 20,096.72, 30,163.74 and 10,243.40

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Solution

The fourth proportional to 20,096.72, 30,163.74 and 10,243.40 is: 15,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096.72 : 30,163.74 = 10,243.40 : x
  2. Step 2: Convert to fraction form
    20,096.72/30,163.74 = 10,243.40/x
  3. Step 3: Cross multiply
    20,096.72x = 30,163.74 × 10,243.40
  4. Step 4: Simplify right side
    20,096.72x = 308,979,254.32
  5. Step 5: Solve for x
    x = 308,979,254.32/20,096.72
  6. Step 6: Final answer
    x = 15,374.61

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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.