Home / 20,113.92-30,171.30-6,966.72

Finding the Fourth Proportional to 20,113.92, 30,171.30 and 6,966.72

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Solution

The fourth proportional to 20,113.92, 30,171.30 and 6,966.72 is: 10,450.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,113.92 : 30,171.30 = 6,966.72 : x
  2. Step 2: Convert to fraction form
    20,113.92/30,171.30 = 6,966.72/x
  3. Step 3: Cross multiply
    20,113.92x = 30,171.30 × 6,966.72
  4. Step 4: Simplify right side
    20,113.92x = 210,194,999.14
  5. Step 5: Solve for x
    x = 210,194,999.14/20,113.92
  6. Step 6: Final answer
    x = 10,450.23

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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.