Home / 18,942.96-28,412.55-5,795.45

Finding the Fourth Proportional to 18,942.96, 28,412.55 and 5,795.45

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Solution

The fourth proportional to 18,942.96, 28,412.55 and 5,795.45 is: 8,692.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.96 : 28,412.55 = 5,795.45 : x
  2. Step 2: Convert to fraction form
    18,942.96/28,412.55 = 5,795.45/x
  3. Step 3: Cross multiply
    18,942.96x = 28,412.55 × 5,795.45
  4. Step 4: Simplify right side
    18,942.96x = 164,663,370.83
  5. Step 5: Solve for x
    x = 164,663,370.83/18,942.96
  6. Step 6: Final answer
    x = 8,692.59

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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.