Home / 19,939.97-27,517.74-10,988.06

Finding the Fourth Proportional to 19,939.97, 27,517.74 and 10,988.06

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Solution

The fourth proportional to 19,939.97, 27,517.74 and 10,988.06 is: 15,163.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.97 : 27,517.74 = 10,988.06 : x
  2. Step 2: Convert to fraction form
    19,939.97/27,517.74 = 10,988.06/x
  3. Step 3: Cross multiply
    19,939.97x = 27,517.74 × 10,988.06
  4. Step 4: Simplify right side
    19,939.97x = 302,366,484.38
  5. Step 5: Solve for x
    x = 302,366,484.38/19,939.97
  6. Step 6: Final answer
    x = 15,163.83

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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.