Home / 20,426.44-30,642.30-7,282.60

Finding the Fourth Proportional to 20,426.44, 30,642.30 and 7,282.60

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Solution

The fourth proportional to 20,426.44, 30,642.30 and 7,282.60 is: 10,924.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.44 : 30,642.30 = 7,282.60 : x
  2. Step 2: Convert to fraction form
    20,426.44/30,642.30 = 7,282.60/x
  3. Step 3: Cross multiply
    20,426.44x = 30,642.30 × 7,282.60
  4. Step 4: Simplify right side
    20,426.44x = 223,155,613.98
  5. Step 5: Solve for x
    x = 223,155,613.98/20,426.44
  6. Step 6: Final answer
    x = 10,924.84

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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.