Home / 20,580.93-30,867.81-5,786.33

Finding the Fourth Proportional to 20,580.93, 30,867.81 and 5,786.33

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Solution

The fourth proportional to 20,580.93, 30,867.81 and 5,786.33 is: 8,678.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.93 : 30,867.81 = 5,786.33 : x
  2. Step 2: Convert to fraction form
    20,580.93/30,867.81 = 5,786.33/x
  3. Step 3: Cross multiply
    20,580.93x = 30,867.81 × 5,786.33
  4. Step 4: Simplify right side
    20,580.93x = 178,611,435.72
  5. Step 5: Solve for x
    x = 178,611,435.72/20,580.93
  6. Step 6: Final answer
    x = 8,678.49

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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.