Home / 20,381.68-30,573.83-7,055.96

Finding the Fourth Proportional to 20,381.68, 30,573.83 and 7,055.96

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Solution

The fourth proportional to 20,381.68, 30,573.83 and 7,055.96 is: 10,584.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.68 : 30,573.83 = 7,055.96 : x
  2. Step 2: Convert to fraction form
    20,381.68/30,573.83 = 7,055.96/x
  3. Step 3: Cross multiply
    20,381.68x = 30,573.83 × 7,055.96
  4. Step 4: Simplify right side
    20,381.68x = 215,727,721.53
  5. Step 5: Solve for x
    x = 215,727,721.53/20,381.68
  6. Step 6: Final answer
    x = 10,584.39

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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.