Home / 43,128.63-64,692.94-11,963.88

Finding the Fourth Proportional to 43,128.63, 64,692.94 and 11,963.88

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Solution

The fourth proportional to 43,128.63, 64,692.94 and 11,963.88 is: 17,945.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,128.63 : 64,692.94 = 11,963.88 : x
  2. Step 2: Convert to fraction form
    43,128.63/64,692.94 = 11,963.88/x
  3. Step 3: Cross multiply
    43,128.63x = 64,692.94 × 11,963.88
  4. Step 4: Simplify right side
    43,128.63x = 773,978,571.01
  5. Step 5: Solve for x
    x = 773,978,571.01/43,128.63
  6. Step 6: Final answer
    x = 17,945.82

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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.