Home / 39,919.32-59,861.66-21,195.27

Finding the Fourth Proportional to 39,919.32, 59,861.66 and 21,195.27

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Solution

The fourth proportional to 39,919.32, 59,861.66 and 21,195.27 is: 31,783.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.32 : 59,861.66 = 21,195.27 : x
  2. Step 2: Convert to fraction form
    39,919.32/59,861.66 = 21,195.27/x
  3. Step 3: Cross multiply
    39,919.32x = 59,861.66 × 21,195.27
  4. Step 4: Simplify right side
    39,919.32x = 1,268,783,940.37
  5. Step 5: Solve for x
    x = 1,268,783,940.37/39,919.32
  6. Step 6: Final answer
    x = 31,783.71

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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.