Home / 27,923.58-38,519.82-21,198.06

Finding the Fourth Proportional to 27,923.58, 38,519.82 and 21,198.06

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Solution

The fourth proportional to 27,923.58, 38,519.82 and 21,198.06 is: 29,242.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,923.58 : 38,519.82 = 21,198.06 : x
  2. Step 2: Convert to fraction form
    27,923.58/38,519.82 = 21,198.06/x
  3. Step 3: Cross multiply
    27,923.58x = 38,519.82 × 21,198.06
  4. Step 4: Simplify right side
    27,923.58x = 816,545,455.55
  5. Step 5: Solve for x
    x = 816,545,455.55/27,923.58
  6. Step 6: Final answer
    x = 29,242.15

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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.