Home / 18,771.44-28,189.31-16,667.79

Finding the Fourth Proportional to 18,771.44, 28,189.31 and 16,667.79

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Solution

The fourth proportional to 18,771.44, 28,189.31 and 16,667.79 is: 25,030.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.44 : 28,189.31 = 16,667.79 : x
  2. Step 2: Convert to fraction form
    18,771.44/28,189.31 = 16,667.79/x
  3. Step 3: Cross multiply
    18,771.44x = 28,189.31 × 16,667.79
  4. Step 4: Simplify right side
    18,771.44x = 469,853,415.99
  5. Step 5: Solve for x
    x = 469,853,415.99/18,771.44
  6. Step 6: Final answer
    x = 25,030.23

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1.5x scale

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.