Home / 20,626.52-30,869.70-12,734.06

Finding the Fourth Proportional to 20,626.52, 30,869.70 and 12,734.06

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Solution

The fourth proportional to 20,626.52, 30,869.70 and 12,734.06 is: 19,057.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.52 : 30,869.70 = 12,734.06 : x
  2. Step 2: Convert to fraction form
    20,626.52/30,869.70 = 12,734.06/x
  3. Step 3: Cross multiply
    20,626.52x = 30,869.70 × 12,734.06
  4. Step 4: Simplify right side
    20,626.52x = 393,096,611.98
  5. Step 5: Solve for x
    x = 393,096,611.98/20,626.52
  6. Step 6: Final answer
    x = 19,057.83

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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.