Home / 27,906.88-41,876.64-10,389.12

Finding the Fourth Proportional to 27,906.88, 41,876.64 and 10,389.12

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Solution

The fourth proportional to 27,906.88, 41,876.64 and 10,389.12 is: 15,589.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.88 : 41,876.64 = 10,389.12 : x
  2. Step 2: Convert to fraction form
    27,906.88/41,876.64 = 10,389.12/x
  3. Step 3: Cross multiply
    27,906.88x = 41,876.64 × 10,389.12
  4. Step 4: Simplify right side
    27,906.88x = 435,061,438.16
  5. Step 5: Solve for x
    x = 435,061,438.16/27,906.88
  6. Step 6: Final answer
    x = 15,589.76

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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.