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Finding the Fourth Proportional to 36,664, 54,996 and 13,290.46

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Solution

The fourth proportional to 36,664, 54,996 and 13,290.46 is: 19,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,664 : 54,996 = 13,290.46 : x
  2. Step 2: Convert to fraction form
    36,664/54,996 = 13,290.46/x
  3. Step 3: Cross multiply
    36,664x = 54,996 × 13,290.46
  4. Step 4: Simplify right side
    36,664x = 730,922,138.16
  5. Step 5: Solve for x
    x = 730,922,138.16/36,664
  6. Step 6: Final answer
    x = 19,935.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.