Home / 27,820.80-41,740.12-8,100.54

Finding the Fourth Proportional to 27,820.80, 41,740.12 and 8,100.54

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Solution

The fourth proportional to 27,820.80, 41,740.12 and 8,100.54 is: 12,153.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.80 : 41,740.12 = 8,100.54 : x
  2. Step 2: Convert to fraction form
    27,820.80/41,740.12 = 8,100.54/x
  3. Step 3: Cross multiply
    27,820.80x = 41,740.12 × 8,100.54
  4. Step 4: Simplify right side
    27,820.80x = 338,117,511.66
  5. Step 5: Solve for x
    x = 338,117,511.66/27,820.80
  6. Step 6: Final answer
    x = 12,153.41

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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.