Home / 19,891.05-27,450.35-10,939.23

Finding the Fourth Proportional to 19,891.05, 27,450.35 and 10,939.23

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Solution

The fourth proportional to 19,891.05, 27,450.35 and 10,939.23 is: 15,096.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,891.05 : 27,450.35 = 10,939.23 : x
  2. Step 2: Convert to fraction form
    19,891.05/27,450.35 = 10,939.23/x
  3. Step 3: Cross multiply
    19,891.05x = 27,450.35 × 10,939.23
  4. Step 4: Simplify right side
    19,891.05x = 300,285,637.53
  5. Step 5: Solve for x
    x = 300,285,637.53/19,891.05
  6. Step 6: Final answer
    x = 15,096.52

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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.