Home / 30,068.41-45,144.33-18,942.25

Finding the Fourth Proportional to 30,068.41, 45,144.33 and 18,942.25

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Solution

The fourth proportional to 30,068.41, 45,144.33 and 18,942.25 is: 28,439.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.41 : 45,144.33 = 18,942.25 : x
  2. Step 2: Convert to fraction form
    30,068.41/45,144.33 = 18,942.25/x
  3. Step 3: Cross multiply
    30,068.41x = 45,144.33 × 18,942.25
  4. Step 4: Simplify right side
    30,068.41x = 855,135,184.94
  5. Step 5: Solve for x
    x = 855,135,184.94/30,068.41
  6. Step 6: Final answer
    x = 28,439.65

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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.