Home / 20,453.27-30,679.02-6,412.95

Finding the Fourth Proportional to 20,453.27, 30,679.02 and 6,412.95

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Solution

The fourth proportional to 20,453.27, 30,679.02 and 6,412.95 is: 9,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,453.27 : 30,679.02 = 6,412.95 : x
  2. Step 2: Convert to fraction form
    20,453.27/30,679.02 = 6,412.95/x
  3. Step 3: Cross multiply
    20,453.27x = 30,679.02 × 6,412.95
  4. Step 4: Simplify right side
    20,453.27x = 196,743,021.31
  5. Step 5: Solve for x
    x = 196,743,021.31/20,453.27
  6. Step 6: Final answer
    x = 9,619.15

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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.