Home / 20,651.90-30,977.96-5,069.53

Finding the Fourth Proportional to 20,651.90, 30,977.96 and 5,069.53

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Solution

The fourth proportional to 20,651.90, 30,977.96 and 5,069.53 is: 7,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,651.90 : 30,977.96 = 5,069.53 : x
  2. Step 2: Convert to fraction form
    20,651.90/30,977.96 = 5,069.53/x
  3. Step 3: Cross multiply
    20,651.90x = 30,977.96 × 5,069.53
  4. Step 4: Simplify right side
    20,651.90x = 157,043,594.77
  5. Step 5: Solve for x
    x = 157,043,594.77/20,651.90
  6. Step 6: Final answer
    x = 7,604.32

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1.5x scale

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.