Home / 31,868.75-43,977.14-17,720.67

Finding the Fourth Proportional to 31,868.75, 43,977.14 and 17,720.67

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Solution

The fourth proportional to 31,868.75, 43,977.14 and 17,720.67 is: 24,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.75 : 43,977.14 = 17,720.67 : x
  2. Step 2: Convert to fraction form
    31,868.75/43,977.14 = 17,720.67/x
  3. Step 3: Cross multiply
    31,868.75x = 43,977.14 × 17,720.67
  4. Step 4: Simplify right side
    31,868.75x = 779,304,296.88
  5. Step 5: Solve for x
    x = 779,304,296.88/31,868.75
  6. Step 6: Final answer
    x = 24,453.56

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Why These Related Problems?

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