Home / 20,651.54-30,977.33-5,069.16

Finding the Fourth Proportional to 20,651.54, 30,977.33 and 5,069.16

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Solution

The fourth proportional to 20,651.54, 30,977.33 and 5,069.16 is: 7,603.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.54 : 30,977.33 = 5,069.16 : x
  2. Step 2: Convert to fraction form
    20,651.54/30,977.33 = 5,069.16/x
  3. Step 3: Cross multiply
    20,651.54x = 30,977.33 × 5,069.16
  4. Step 4: Simplify right side
    20,651.54x = 157,029,059.57
  5. Step 5: Solve for x
    x = 157,029,059.57/20,651.54
  6. Step 6: Final answer
    x = 7,603.75

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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.