Home / 38,379.94-57,577.20-13,427.08

Finding the Fourth Proportional to 38,379.94, 57,577.20 and 13,427.08

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Solution

The fourth proportional to 38,379.94, 57,577.20 and 13,427.08 is: 20,143.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,379.94 : 57,577.20 = 13,427.08 : x
  2. Step 2: Convert to fraction form
    38,379.94/57,577.20 = 13,427.08/x
  3. Step 3: Cross multiply
    38,379.94x = 57,577.20 × 13,427.08
  4. Step 4: Simplify right side
    38,379.94x = 773,093,670.58
  5. Step 5: Solve for x
    x = 773,093,670.58/38,379.94
  6. Step 6: Final answer
    x = 20,143.17

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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.