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Finding the Fourth Proportional to 36,693, 55,039.59 and 13,319.46

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Solution

The fourth proportional to 36,693, 55,039.59 and 13,319.46 is: 19,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,693 : 55,039.59 = 13,319.46 : x
  2. Step 2: Convert to fraction form
    36,693/55,039.59 = 13,319.46/x
  3. Step 3: Cross multiply
    36,693x = 55,039.59 × 13,319.46
  4. Step 4: Simplify right side
    36,693x = 733,097,617.42
  5. Step 5: Solve for x
    x = 733,097,617.42/36,693
  6. Step 6: Final answer
    x = 19,979.22

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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.