Home / 28,745.28-43,117.60-7,968

Finding the Fourth Proportional to 28,745.28, 43,117.60 and 7,968

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Solution

The fourth proportional to 28,745.28, 43,117.60 and 7,968 is: 11,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,745.28 : 43,117.60 = 7,968 : x
  2. Step 2: Convert to fraction form
    28,745.28/43,117.60 = 7,968/x
  3. Step 3: Cross multiply
    28,745.28x = 43,117.60 × 7,968
  4. Step 4: Simplify right side
    28,745.28x = 343,561,036.80
  5. Step 5: Solve for x
    x = 343,561,036.80/28,745.28
  6. Step 6: Final answer
    x = 11,951.91

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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.