Home / 28,771.36-43,157.60-7,994.56

Finding the Fourth Proportional to 28,771.36, 43,157.60 and 7,994.56

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Solution

The fourth proportional to 28,771.36, 43,157.60 and 7,994.56 is: 11,992.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,771.36 : 43,157.60 = 7,994.56 : x
  2. Step 2: Convert to fraction form
    28,771.36/43,157.60 = 7,994.56/x
  3. Step 3: Cross multiply
    28,771.36x = 43,157.60 × 7,994.56
  4. Step 4: Simplify right side
    28,771.36x = 345,026,022.66
  5. Step 5: Solve for x
    x = 345,026,022.66/28,771.36
  6. Step 6: Final answer
    x = 11,992.00

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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.