Home / 19,858.85-27,405.18-10,906.43

Finding the Fourth Proportional to 19,858.85, 27,405.18 and 10,906.43

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Solution

The fourth proportional to 19,858.85, 27,405.18 and 10,906.43 is: 15,050.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,858.85 : 27,405.18 = 10,906.43 : x
  2. Step 2: Convert to fraction form
    19,858.85/27,405.18 = 10,906.43/x
  3. Step 3: Cross multiply
    19,858.85x = 27,405.18 × 10,906.43
  4. Step 4: Simplify right side
    19,858.85x = 298,892,745.82
  5. Step 5: Solve for x
    x = 298,892,745.82/19,858.85
  6. Step 6: Final answer
    x = 15,050.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.