Home / 28,911.14-43,369.60-7,851.50

Finding the Fourth Proportional to 28,911.14, 43,369.60 and 7,851.50

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Solution

The fourth proportional to 28,911.14, 43,369.60 and 7,851.50 is: 11,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.14 : 43,369.60 = 7,851.50 : x
  2. Step 2: Convert to fraction form
    28,911.14/43,369.60 = 7,851.50/x
  3. Step 3: Cross multiply
    28,911.14x = 43,369.60 × 7,851.50
  4. Step 4: Simplify right side
    28,911.14x = 340,516,414.40
  5. Step 5: Solve for x
    x = 340,516,414.40/28,911.14
  6. Step 6: Final answer
    x = 11,778.03

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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.