Home / 27,758.18-38,249.61-19,783.46

Finding the Fourth Proportional to 27,758.18, 38,249.61 and 19,783.46

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Solution

The fourth proportional to 27,758.18, 38,249.61 and 19,783.46 is: 27,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,758.18 : 38,249.61 = 19,783.46 : x
  2. Step 2: Convert to fraction form
    27,758.18/38,249.61 = 19,783.46/x
  3. Step 3: Cross multiply
    27,758.18x = 38,249.61 × 19,783.46
  4. Step 4: Simplify right side
    27,758.18x = 756,709,629.45
  5. Step 5: Solve for x
    x = 756,709,629.45/27,758.18
  6. Step 6: Final answer
    x = 27,260.78

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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.