Home / 19,910.97-27,477.09-10,958.58

Finding the Fourth Proportional to 19,910.97, 27,477.09 and 10,958.58

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Solution

The fourth proportional to 19,910.97, 27,477.09 and 10,958.58 is: 15,122.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,910.97 : 27,477.09 = 10,958.58 : x
  2. Step 2: Convert to fraction form
    19,910.97/27,477.09 = 10,958.58/x
  3. Step 3: Cross multiply
    19,910.97x = 27,477.09 × 10,958.58
  4. Step 4: Simplify right side
    19,910.97x = 301,109,888.93
  5. Step 5: Solve for x
    x = 301,109,888.93/19,910.97
  6. Step 6: Final answer
    x = 15,122.81

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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.