Home / 19,891.14-27,449.86-10,939.22

Finding the Fourth Proportional to 19,891.14, 27,449.86 and 10,939.22

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Solution

The fourth proportional to 19,891.14, 27,449.86 and 10,939.22 is: 15,096.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.14 : 27,449.86 = 10,939.22 : x
  2. Step 2: Convert to fraction form
    19,891.14/27,449.86 = 10,939.22/x
  3. Step 3: Cross multiply
    19,891.14x = 27,449.86 × 10,939.22
  4. Step 4: Simplify right side
    19,891.14x = 300,280,057.51
  5. Step 5: Solve for x
    x = 300,280,057.51/19,891.14
  6. Step 6: Final answer
    x = 15,096.17

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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.