Home / 20,125.06-27,791.49-12,967.54

Finding the Fourth Proportional to 20,125.06, 27,791.49 and 12,967.54

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Solution

The fourth proportional to 20,125.06, 27,791.49 and 12,967.54 is: 17,907.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,125.06 : 27,791.49 = 12,967.54 : x
  2. Step 2: Convert to fraction form
    20,125.06/27,791.49 = 12,967.54/x
  3. Step 3: Cross multiply
    20,125.06x = 27,791.49 × 12,967.54
  4. Step 4: Simplify right side
    20,125.06x = 360,387,258.23
  5. Step 5: Solve for x
    x = 360,387,258.23/20,125.06
  6. Step 6: Final answer
    x = 17,907.39

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1.5x scale

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.