Home / 21,263.40-31,874.52-11,907.96

Finding the Fourth Proportional to 21,263.40, 31,874.52 and 11,907.96

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Solution

The fourth proportional to 21,263.40, 31,874.52 and 11,907.96 is: 17,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,263.40 : 31,874.52 = 11,907.96 : x
  2. Step 2: Convert to fraction form
    21,263.40/31,874.52 = 11,907.96/x
  3. Step 3: Cross multiply
    21,263.40x = 31,874.52 × 11,907.96
  4. Step 4: Simplify right side
    21,263.40x = 379,560,509.18
  5. Step 5: Solve for x
    x = 379,560,509.18/21,263.40
  6. Step 6: Final answer
    x = 17,850.41

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.