Home / 18,942.33-28,407.34-8,945.53

Finding the Fourth Proportional to 18,942.33, 28,407.34 and 8,945.53

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Solution

The fourth proportional to 18,942.33, 28,407.34 and 8,945.53 is: 13,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.33 : 28,407.34 = 8,945.53 : x
  2. Step 2: Convert to fraction form
    18,942.33/28,407.34 = 8,945.53/x
  3. Step 3: Cross multiply
    18,942.33x = 28,407.34 × 8,945.53
  4. Step 4: Simplify right side
    18,942.33x = 254,118,570.15
  5. Step 5: Solve for x
    x = 254,118,570.15/18,942.33
  6. Step 6: Final answer
    x = 13,415.38

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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.