Home / 20,611.69-30,919.81-6,568.45

Finding the Fourth Proportional to 20,611.69, 30,919.81 and 6,568.45

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Solution

The fourth proportional to 20,611.69, 30,919.81 and 6,568.45 is: 9,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611.69 : 30,919.81 = 6,568.45 : x
  2. Step 2: Convert to fraction form
    20,611.69/30,919.81 = 6,568.45/x
  3. Step 3: Cross multiply
    20,611.69x = 30,919.81 × 6,568.45
  4. Step 4: Simplify right side
    20,611.69x = 203,095,193.15
  5. Step 5: Solve for x
    x = 203,095,193.15/20,611.69
  6. Step 6: Final answer
    x = 9,853.40

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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.