Home / 27,990.36-38,625.92-15,243.27

Finding the Fourth Proportional to 27,990.36, 38,625.92 and 15,243.27

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Solution

The fourth proportional to 27,990.36, 38,625.92 and 15,243.27 is: 21,035.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.36 : 38,625.92 = 15,243.27 : x
  2. Step 2: Convert to fraction form
    27,990.36/38,625.92 = 15,243.27/x
  3. Step 3: Cross multiply
    27,990.36x = 38,625.92 × 15,243.27
  4. Step 4: Simplify right side
    27,990.36x = 588,785,365.67
  5. Step 5: Solve for x
    x = 588,785,365.67/27,990.36
  6. Step 6: Final answer
    x = 21,035.29

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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.