Home / 18,817.80-28,148.94-17,107.08

Finding the Fourth Proportional to 18,817.80, 28,148.94 and 17,107.08

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Solution

The fourth proportional to 18,817.80, 28,148.94 and 17,107.08 is: 25,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,817.80 : 28,148.94 = 17,107.08 : x
  2. Step 2: Convert to fraction form
    18,817.80/28,148.94 = 17,107.08/x
  3. Step 3: Cross multiply
    18,817.80x = 28,148.94 × 17,107.08
  4. Step 4: Simplify right side
    18,817.80x = 481,546,168.50
  5. Step 5: Solve for x
    x = 481,546,168.50/18,817.80
  6. Step 6: Final answer
    x = 25,589.93

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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.