Home / 27,979.41-38,615.27-16,040.43

Finding the Fourth Proportional to 27,979.41, 38,615.27 and 16,040.43

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Solution

The fourth proportional to 27,979.41, 38,615.27 and 16,040.43 is: 22,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.41 : 38,615.27 = 16,040.43 : x
  2. Step 2: Convert to fraction form
    27,979.41/38,615.27 = 16,040.43/x
  3. Step 3: Cross multiply
    27,979.41x = 38,615.27 × 16,040.43
  4. Step 4: Simplify right side
    27,979.41x = 619,405,535.37
  5. Step 5: Solve for x
    x = 619,405,535.37/27,979.41
  6. Step 6: Final answer
    x = 22,137.91

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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.