Home / 28,742.58-43,112.67-7,965.54

Finding the Fourth Proportional to 28,742.58, 43,112.67 and 7,965.54

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Solution

The fourth proportional to 28,742.58, 43,112.67 and 7,965.54 is: 11,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,742.58 : 43,112.67 = 7,965.54 : x
  2. Step 2: Convert to fraction form
    28,742.58/43,112.67 = 7,965.54/x
  3. Step 3: Cross multiply
    28,742.58x = 43,112.67 × 7,965.54
  4. Step 4: Simplify right side
    28,742.58x = 343,415,697.39
  5. Step 5: Solve for x
    x = 343,415,697.39/28,742.58
  6. Step 6: Final answer
    x = 11,947.98

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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.