Home / 27,899.24-38,498.98-15,321.64

Finding the Fourth Proportional to 27,899.24, 38,498.98 and 15,321.64

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Solution

The fourth proportional to 27,899.24, 38,498.98 and 15,321.64 is: 21,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.24 : 38,498.98 = 15,321.64 : x
  2. Step 2: Convert to fraction form
    27,899.24/38,498.98 = 15,321.64/x
  3. Step 3: Cross multiply
    27,899.24x = 38,498.98 × 15,321.64
  4. Step 4: Simplify right side
    27,899.24x = 589,867,511.93
  5. Step 5: Solve for x
    x = 589,867,511.93/27,899.24
  6. Step 6: Final answer
    x = 21,142.78

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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.