Home / 27,945.19-38,544.83-18,977.12

Finding the Fourth Proportional to 27,945.19, 38,544.83 and 18,977.12

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Solution

The fourth proportional to 27,945.19, 38,544.83 and 18,977.12 is: 26,175.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.19 : 38,544.83 = 18,977.12 : x
  2. Step 2: Convert to fraction form
    27,945.19/38,544.83 = 18,977.12/x
  3. Step 3: Cross multiply
    27,945.19x = 38,544.83 × 18,977.12
  4. Step 4: Simplify right side
    27,945.19x = 731,469,792.39
  5. Step 5: Solve for x
    x = 731,469,792.39/27,945.19
  6. Step 6: Final answer
    x = 26,175.16

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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.