Home / 27,979.36-38,608.08-16,649.12

Finding the Fourth Proportional to 27,979.36, 38,608.08 and 16,649.12

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Solution

The fourth proportional to 27,979.36, 38,608.08 and 16,649.12 is: 22,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.36 : 38,608.08 = 16,649.12 : x
  2. Step 2: Convert to fraction form
    27,979.36/38,608.08 = 16,649.12/x
  3. Step 3: Cross multiply
    27,979.36x = 38,608.08 × 16,649.12
  4. Step 4: Simplify right side
    27,979.36x = 642,790,556.89
  5. Step 5: Solve for x
    x = 642,790,556.89/27,979.36
  6. Step 6: Final answer
    x = 22,973.74

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Similar ratio
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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.