Home / 18,018.79-27,028.56-4,692.31

Finding the Fourth Proportional to 18,018.79, 27,028.56 and 4,692.31

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Solution

The fourth proportional to 18,018.79, 27,028.56 and 4,692.31 is: 7,038.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.79 : 27,028.56 = 4,692.31 : x
  2. Step 2: Convert to fraction form
    18,018.79/27,028.56 = 4,692.31/x
  3. Step 3: Cross multiply
    18,018.79x = 27,028.56 × 4,692.31
  4. Step 4: Simplify right side
    18,018.79x = 126,826,382.37
  5. Step 5: Solve for x
    x = 126,826,382.37/18,018.79
  6. Step 6: Final answer
    x = 7,038.56

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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.