Home / 19,939.94-27,516.97-10,987.23

Finding the Fourth Proportional to 19,939.94, 27,516.97 and 10,987.23

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Solution

The fourth proportional to 19,939.94, 27,516.97 and 10,987.23 is: 15,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,939.94 : 27,516.97 = 10,987.23 : x
  2. Step 2: Convert to fraction form
    19,939.94/27,516.97 = 10,987.23/x
  3. Step 3: Cross multiply
    19,939.94x = 27,516.97 × 10,987.23
  4. Step 4: Simplify right side
    19,939.94x = 302,335,278.29
  5. Step 5: Solve for x
    x = 302,335,278.29/19,939.94
  6. Step 6: Final answer
    x = 15,162.30

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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.