Home / 27,857.37-38,451.94-18,795.90

Finding the Fourth Proportional to 27,857.37, 38,451.94 and 18,795.90

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Solution

The fourth proportional to 27,857.37, 38,451.94 and 18,795.90 is: 25,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.37 : 38,451.94 = 18,795.90 : x
  2. Step 2: Convert to fraction form
    27,857.37/38,451.94 = 18,795.90/x
  3. Step 3: Cross multiply
    27,857.37x = 38,451.94 × 18,795.90
  4. Step 4: Simplify right side
    27,857.37x = 722,738,752.82
  5. Step 5: Solve for x
    x = 722,738,752.82/27,857.37
  6. Step 6: Final answer
    x = 25,944.26

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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.