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Finding the Fourth Proportional to 35,889.33, 49,523.60 and 20,786.90

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Solution

The fourth proportional to 35,889.33, 49,523.60 and 20,786.90 is: 28,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,889.33 : 49,523.60 = 20,786.90 : x
  2. Step 2: Convert to fraction form
    35,889.33/49,523.60 = 20,786.90/x
  3. Step 3: Cross multiply
    35,889.33x = 49,523.60 × 20,786.90
  4. Step 4: Simplify right side
    35,889.33x = 1,029,442,120.84
  5. Step 5: Solve for x
    x = 1,029,442,120.84/35,889.33
  6. Step 6: Final answer
    x = 28,683.79

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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.