Home / 20,611.94-30,920.18-6,568.70

Finding the Fourth Proportional to 20,611.94, 30,920.18 and 6,568.70

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Solution

The fourth proportional to 20,611.94, 30,920.18 and 6,568.70 is: 9,853.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611.94 : 30,920.18 = 6,568.70 : x
  2. Step 2: Convert to fraction form
    20,611.94/30,920.18 = 6,568.70/x
  3. Step 3: Cross multiply
    20,611.94x = 30,920.18 × 6,568.70
  4. Step 4: Simplify right side
    20,611.94x = 203,105,386.37
  5. Step 5: Solve for x
    x = 203,105,386.37/20,611.94
  6. Step 6: Final answer
    x = 9,853.77

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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.