Home / 38,515.23-57,774.94-11,879.56

Finding the Fourth Proportional to 38,515.23, 57,774.94 and 11,879.56

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Solution

The fourth proportional to 38,515.23, 57,774.94 and 11,879.56 is: 17,819.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.23 : 57,774.94 = 11,879.56 : x
  2. Step 2: Convert to fraction form
    38,515.23/57,774.94 = 11,879.56/x
  3. Step 3: Cross multiply
    38,515.23x = 57,774.94 × 11,879.56
  4. Step 4: Simplify right side
    38,515.23x = 686,340,908.75
  5. Step 5: Solve for x
    x = 686,340,908.75/38,515.23
  6. Step 6: Final answer
    x = 17,819.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.