Home / 27,921.12-41,875.20-8,194.38

Finding the Fourth Proportional to 27,921.12, 41,875.20 and 8,194.38

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Solution

The fourth proportional to 27,921.12, 41,875.20 and 8,194.38 is: 12,289.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.12 : 41,875.20 = 8,194.38 : x
  2. Step 2: Convert to fraction form
    27,921.12/41,875.20 = 8,194.38/x
  3. Step 3: Cross multiply
    27,921.12x = 41,875.20 × 8,194.38
  4. Step 4: Simplify right side
    27,921.12x = 343,141,301.38
  5. Step 5: Solve for x
    x = 343,141,301.38/27,921.12
  6. Step 6: Final answer
    x = 12,289.67

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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.