Home / 20,673.36-28,529.04-11,242

Finding the Fourth Proportional to 20,673.36, 28,529.04 and 11,242

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Solution

The fourth proportional to 20,673.36, 28,529.04 and 11,242 is: 15,513.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.36 : 28,529.04 = 11,242 : x
  2. Step 2: Convert to fraction form
    20,673.36/28,529.04 = 11,242/x
  3. Step 3: Cross multiply
    20,673.36x = 28,529.04 × 11,242
  4. Step 4: Simplify right side
    20,673.36x = 320,723,467.68
  5. Step 5: Solve for x
    x = 320,723,467.68/20,673.36
  6. Step 6: Final answer
    x = 15,513.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.