Home / 20,069.45-30,107.65-6,743.75

Finding the Fourth Proportional to 20,069.45, 30,107.65 and 6,743.75

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Solution

The fourth proportional to 20,069.45, 30,107.65 and 6,743.75 is: 10,116.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.45 : 30,107.65 = 6,743.75 : x
  2. Step 2: Convert to fraction form
    20,069.45/30,107.65 = 6,743.75/x
  3. Step 3: Cross multiply
    20,069.45x = 30,107.65 × 6,743.75
  4. Step 4: Simplify right side
    20,069.45x = 203,038,331.01
  5. Step 5: Solve for x
    x = 203,038,331.01/20,069.45
  6. Step 6: Final answer
    x = 10,116.79

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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.