Home / 19,842.19-27,382.43-10,890.27

Finding the Fourth Proportional to 19,842.19, 27,382.43 and 10,890.27

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Solution

The fourth proportional to 19,842.19, 27,382.43 and 10,890.27 is: 15,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,842.19 : 27,382.43 = 10,890.27 : x
  2. Step 2: Convert to fraction form
    19,842.19/27,382.43 = 10,890.27/x
  3. Step 3: Cross multiply
    19,842.19x = 27,382.43 × 10,890.27
  4. Step 4: Simplify right side
    19,842.19x = 298,202,055.96
  5. Step 5: Solve for x
    x = 298,202,055.96/19,842.19
  6. Step 6: Final answer
    x = 15,028.69

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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.