Home / 20,230.45-27,918.27-11,617.99

Finding the Fourth Proportional to 20,230.45, 27,918.27 and 11,617.99

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Solution

The fourth proportional to 20,230.45, 27,918.27 and 11,617.99 is: 16,032.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.45 : 27,918.27 = 11,617.99 : x
  2. Step 2: Convert to fraction form
    20,230.45/27,918.27 = 11,617.99/x
  3. Step 3: Cross multiply
    20,230.45x = 27,918.27 × 11,617.99
  4. Step 4: Simplify right side
    20,230.45x = 324,354,111.88
  5. Step 5: Solve for x
    x = 324,354,111.88/20,230.45
  6. Step 6: Final answer
    x = 16,032.97

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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.