Home / 36,286.78-50,078.16-20,372.32

Finding the Fourth Proportional to 36,286.78, 50,078.16 and 20,372.32

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Solution

The fourth proportional to 36,286.78, 50,078.16 and 20,372.32 is: 28,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,286.78 : 50,078.16 = 20,372.32 : x
  2. Step 2: Convert to fraction form
    36,286.78/50,078.16 = 20,372.32/x
  3. Step 3: Cross multiply
    36,286.78x = 50,078.16 × 20,372.32
  4. Step 4: Simplify right side
    36,286.78x = 1,020,208,300.53
  5. Step 5: Solve for x
    x = 1,020,208,300.53/36,286.78
  6. Step 6: Final answer
    x = 28,115.15

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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.