Home / 20,651.53-30,977.39-5,069.15

Finding the Fourth Proportional to 20,651.53, 30,977.39 and 5,069.15

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Solution

The fourth proportional to 20,651.53, 30,977.39 and 5,069.15 is: 7,603.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.53 : 30,977.39 = 5,069.15 : x
  2. Step 2: Convert to fraction form
    20,651.53/30,977.39 = 5,069.15/x
  3. Step 3: Cross multiply
    20,651.53x = 30,977.39 × 5,069.15
  4. Step 4: Simplify right side
    20,651.53x = 157,029,126.63
  5. Step 5: Solve for x
    x = 157,029,126.63/20,651.53
  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.