Home / 28,911.76-43,370.54-7,852.12

Finding the Fourth Proportional to 28,911.76, 43,370.54 and 7,852.12

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Solution

The fourth proportional to 28,911.76, 43,370.54 and 7,852.12 is: 11,778.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.76 : 43,370.54 = 7,852.12 : x
  2. Step 2: Convert to fraction form
    28,911.76/43,370.54 = 7,852.12/x
  3. Step 3: Cross multiply
    28,911.76x = 43,370.54 × 7,852.12
  4. Step 4: Simplify right side
    28,911.76x = 340,550,684.54
  5. Step 5: Solve for x
    x = 340,550,684.54/28,911.76
  6. Step 6: Final answer
    x = 11,778.97

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1.5x scale

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.