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Finding the Fourth Proportional to 28,816.67, 43,220.15 and 8,035.31

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Solution

The fourth proportional to 28,816.67, 43,220.15 and 8,035.31 is: 12,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816.67 : 43,220.15 = 8,035.31 : x
  2. Step 2: Convert to fraction form
    28,816.67/43,220.15 = 8,035.31/x
  3. Step 3: Cross multiply
    28,816.67x = 43,220.15 × 8,035.31
  4. Step 4: Simplify right side
    28,816.67x = 347,287,401.50
  5. Step 5: Solve for x
    x = 347,287,401.50/28,816.67
  6. Step 6: Final answer
    x = 12,051.61

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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.