Home / 27,857.61-41,800.77-18,504.09

Finding the Fourth Proportional to 27,857.61, 41,800.77 and 18,504.09

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Solution

The fourth proportional to 27,857.61, 41,800.77 and 18,504.09 is: 27,765.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.61 : 41,800.77 = 18,504.09 : x
  2. Step 2: Convert to fraction form
    27,857.61/41,800.77 = 18,504.09/x
  3. Step 3: Cross multiply
    27,857.61x = 41,800.77 × 18,504.09
  4. Step 4: Simplify right side
    27,857.61x = 773,485,210.15
  5. Step 5: Solve for x
    x = 773,485,210.15/27,857.61
  6. Step 6: Final answer
    x = 27,765.67

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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.