Home / 28,745.44-39,662.73-16,806.47

Finding the Fourth Proportional to 28,745.44, 39,662.73 and 16,806.47

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Solution

The fourth proportional to 28,745.44, 39,662.73 and 16,806.47 is: 23,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.44 : 39,662.73 = 16,806.47 : x
  2. Step 2: Convert to fraction form
    28,745.44/39,662.73 = 16,806.47/x
  3. Step 3: Cross multiply
    28,745.44x = 39,662.73 × 16,806.47
  4. Step 4: Simplify right side
    28,745.44x = 666,590,283.55
  5. Step 5: Solve for x
    x = 666,590,283.55/28,745.44
  6. Step 6: Final answer
    x = 23,189.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.