Home / 28,906.81-43,363.10-7,847.19

Finding the Fourth Proportional to 28,906.81, 43,363.10 and 7,847.19

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Solution

The fourth proportional to 28,906.81, 43,363.10 and 7,847.19 is: 11,771.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.81 : 43,363.10 = 7,847.19 : x
  2. Step 2: Convert to fraction form
    28,906.81/43,363.10 = 7,847.19/x
  3. Step 3: Cross multiply
    28,906.81x = 43,363.10 × 7,847.19
  4. Step 4: Simplify right side
    28,906.81x = 340,278,553.86
  5. Step 5: Solve for x
    x = 340,278,553.86/28,906.81
  6. Step 6: Final answer
    x = 11,771.57

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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.