Home / 31,623.30-43,638.98-18,196.63

Finding the Fourth Proportional to 31,623.30, 43,638.98 and 18,196.63

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Solution

The fourth proportional to 31,623.30, 43,638.98 and 18,196.63 is: 25,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,623.30 : 43,638.98 = 18,196.63 : x
  2. Step 2: Convert to fraction form
    31,623.30/43,638.98 = 18,196.63/x
  3. Step 3: Cross multiply
    31,623.30x = 43,638.98 × 18,196.63
  4. Step 4: Simplify right side
    31,623.30x = 794,082,172.56
  5. Step 5: Solve for x
    x = 794,082,172.56/31,623.30
  6. Step 6: Final answer
    x = 25,110.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.