Home / 20,586.78-30,877.43-5,796.97

Finding the Fourth Proportional to 20,586.78, 30,877.43 and 5,796.97

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Solution

The fourth proportional to 20,586.78, 30,877.43 and 5,796.97 is: 8,694.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,586.78 : 30,877.43 = 5,796.97 : x
  2. Step 2: Convert to fraction form
    20,586.78/30,877.43 = 5,796.97/x
  3. Step 3: Cross multiply
    20,586.78x = 30,877.43 × 5,796.97
  4. Step 4: Simplify right side
    20,586.78x = 178,995,535.39
  5. Step 5: Solve for x
    x = 178,995,535.39/20,586.78
  6. Step 6: Final answer
    x = 8,694.68

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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.