Home / 28,912.02-43,364.52-7,850.72

Finding the Fourth Proportional to 28,912.02, 43,364.52 and 7,850.72

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Solution

The fourth proportional to 28,912.02, 43,364.52 and 7,850.72 is: 11,775.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.02 : 43,364.52 = 7,850.72 : x
  2. Step 2: Convert to fraction form
    28,912.02/43,364.52 = 7,850.72/x
  3. Step 3: Cross multiply
    28,912.02x = 43,364.52 × 7,850.72
  4. Step 4: Simplify right side
    28,912.02x = 340,442,704.45
  5. Step 5: Solve for x
    x = 340,442,704.45/28,912.02
  6. Step 6: Final answer
    x = 11,775.13

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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.