Home / 27,979.80-38,604.78-16,648.44

Finding the Fourth Proportional to 27,979.80, 38,604.78 and 16,648.44

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Solution

The fourth proportional to 27,979.80, 38,604.78 and 16,648.44 is: 22,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.80 : 38,604.78 = 16,648.44 : x
  2. Step 2: Convert to fraction form
    27,979.80/38,604.78 = 16,648.44/x
  3. Step 3: Cross multiply
    27,979.80x = 38,604.78 × 16,648.44
  4. Step 4: Simplify right side
    27,979.80x = 642,709,363.54
  5. Step 5: Solve for x
    x = 642,709,363.54/27,979.80
  6. Step 6: Final answer
    x = 22,970.48

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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.