Home / 20,637.72-30,974.81-11,286.27

Finding the Fourth Proportional to 20,637.72, 30,974.81 and 11,286.27

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Solution

The fourth proportional to 20,637.72, 30,974.81 and 11,286.27 is: 16,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,637.72 : 30,974.81 = 11,286.27 : x
  2. Step 2: Convert to fraction form
    20,637.72/30,974.81 = 11,286.27/x
  3. Step 3: Cross multiply
    20,637.72x = 30,974.81 × 11,286.27
  4. Step 4: Simplify right side
    20,637.72x = 349,590,012.43
  5. Step 5: Solve for x
    x = 349,590,012.43/20,637.72
  6. Step 6: Final answer
    x = 16,939.37

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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.