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Finding the Fourth Proportional to 36,686.79, 50,627.79 and 19,919.79

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Solution

The fourth proportional to 36,686.79, 50,627.79 and 19,919.79 is: 27,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,686.79 : 50,627.79 = 19,919.79 : x
  2. Step 2: Convert to fraction form
    36,686.79/50,627.79 = 19,919.79/x
  3. Step 3: Cross multiply
    36,686.79x = 50,627.79 × 19,919.79
  4. Step 4: Simplify right side
    36,686.79x = 1,008,494,944.96
  5. Step 5: Solve for x
    x = 1,008,494,944.96/36,686.79
  6. Step 6: Final answer
    x = 27,489.32

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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.