Home / 20,116.62-30,174.81-10,940.94

Finding the Fourth Proportional to 20,116.62, 30,174.81 and 10,940.94

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Solution

The fourth proportional to 20,116.62, 30,174.81 and 10,940.94 is: 16,411.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.62 : 30,174.81 = 10,940.94 : x
  2. Step 2: Convert to fraction form
    20,116.62/30,174.81 = 10,940.94/x
  3. Step 3: Cross multiply
    20,116.62x = 30,174.81 × 10,940.94
  4. Step 4: Simplify right side
    20,116.62x = 330,140,785.72
  5. Step 5: Solve for x
    x = 330,140,785.72/20,116.62
  6. Step 6: Final answer
    x = 16,411.34

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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.