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Finding the Fourth Proportional to 36,455.88, 50,309.12 and 19,688.88

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Solution

The fourth proportional to 36,455.88, 50,309.12 and 19,688.88 is: 27,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,455.88 : 50,309.12 = 19,688.88 : x
  2. Step 2: Convert to fraction form
    36,455.88/50,309.12 = 19,688.88/x
  3. Step 3: Cross multiply
    36,455.88x = 50,309.12 × 19,688.88
  4. Step 4: Simplify right side
    36,455.88x = 990,530,226.59
  5. Step 5: Solve for x
    x = 990,530,226.59/36,455.88
  6. Step 6: Final answer
    x = 27,170.66

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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.