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Finding the Fourth Proportional to 36,485, 50,349.30 and 19,718

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Solution

The fourth proportional to 36,485, 50,349.30 and 19,718 is: 27,210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,485 : 50,349.30 = 19,718 : x
  2. Step 2: Convert to fraction form
    36,485/50,349.30 = 19,718/x
  3. Step 3: Cross multiply
    36,485x = 50,349.30 × 19,718
  4. Step 4: Simplify right side
    36,485x = 992,787,497.40
  5. Step 5: Solve for x
    x = 992,787,497.40/36,485
  6. Step 6: Final answer
    x = 27,210.84

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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.