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Finding the Fourth Proportional to 30,187.58, 41,667.09 and 19,576.58

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Solution

The fourth proportional to 30,187.58, 41,667.09 and 19,576.58 is: 27,021.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,187.58 : 41,667.09 = 19,576.58 : x
  2. Step 2: Convert to fraction form
    30,187.58/41,667.09 = 19,576.58/x
  3. Step 3: Cross multiply
    30,187.58x = 41,667.09 × 19,576.58
  4. Step 4: Simplify right side
    30,187.58x = 815,699,120.75
  5. Step 5: Solve for x
    x = 815,699,120.75/30,187.58
  6. Step 6: Final answer
    x = 27,021.02

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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.