Home / 38,912.94-58,378.08-11,208.78

Finding the Fourth Proportional to 38,912.94, 58,378.08 and 11,208.78

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Solution

The fourth proportional to 38,912.94, 58,378.08 and 11,208.78 is: 16,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,912.94 : 58,378.08 = 11,208.78 : x
  2. Step 2: Convert to fraction form
    38,912.94/58,378.08 = 11,208.78/x
  3. Step 3: Cross multiply
    38,912.94x = 58,378.08 × 11,208.78
  4. Step 4: Simplify right side
    38,912.94x = 654,347,055.54
  5. Step 5: Solve for x
    x = 654,347,055.54/38,912.94
  6. Step 6: Final answer
    x = 16,815.67

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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.