Home / 27,945.14-38,544.77-18,977.07

Finding the Fourth Proportional to 27,945.14, 38,544.77 and 18,977.07

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Solution

The fourth proportional to 27,945.14, 38,544.77 and 18,977.07 is: 26,175.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.14 : 38,544.77 = 18,977.07 : x
  2. Step 2: Convert to fraction form
    27,945.14/38,544.77 = 18,977.07/x
  3. Step 3: Cross multiply
    27,945.14x = 38,544.77 × 18,977.07
  4. Step 4: Simplify right side
    27,945.14x = 731,466,845.87
  5. Step 5: Solve for x
    x = 731,466,845.87/27,945.14
  6. Step 6: Final answer
    x = 26,175.10

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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.