Home / 29,051.80-43,571.96-7,986.40

Finding the Fourth Proportional to 29,051.80, 43,571.96 and 7,986.40

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Solution

The fourth proportional to 29,051.80, 43,571.96 and 7,986.40 is: 11,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,051.80 : 43,571.96 = 7,986.40 : x
  2. Step 2: Convert to fraction form
    29,051.80/43,571.96 = 7,986.40/x
  3. Step 3: Cross multiply
    29,051.80x = 43,571.96 × 7,986.40
  4. Step 4: Simplify right side
    29,051.80x = 347,983,266.58
  5. Step 5: Solve for x
    x = 347,983,266.58/29,051.80
  6. Step 6: Final answer
    x = 11,978.03

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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.