Home / 27,920.80-41,856.90-16,815.70

Finding the Fourth Proportional to 27,920.80, 41,856.90 and 16,815.70

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Solution

The fourth proportional to 27,920.80, 41,856.90 and 16,815.70 is: 25,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.80 : 41,856.90 = 16,815.70 : x
  2. Step 2: Convert to fraction form
    27,920.80/41,856.90 = 16,815.70/x
  3. Step 3: Cross multiply
    27,920.80x = 41,856.90 × 16,815.70
  4. Step 4: Simplify right side
    27,920.80x = 703,853,073.33
  5. Step 5: Solve for x
    x = 703,853,073.33/27,920.80
  6. Step 6: Final answer
    x = 25,208.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.