Home / 38,692.63-57,961.18-20,185.75

Finding the Fourth Proportional to 38,692.63, 57,961.18 and 20,185.75

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Solution

The fourth proportional to 38,692.63, 57,961.18 and 20,185.75 is: 30,238.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,692.63 : 57,961.18 = 20,185.75 : x
  2. Step 2: Convert to fraction form
    38,692.63/57,961.18 = 20,185.75/x
  3. Step 3: Cross multiply
    38,692.63x = 57,961.18 × 20,185.75
  4. Step 4: Simplify right side
    38,692.63x = 1,169,989,889.19
  5. Step 5: Solve for x
    x = 1,169,989,889.19/38,692.63
  6. Step 6: Final answer
    x = 30,238.06

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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.