Home / 20,344.20-30,504.42-8,651.40

Finding the Fourth Proportional to 20,344.20, 30,504.42 and 8,651.40

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Solution

The fourth proportional to 20,344.20, 30,504.42 and 8,651.40 is: 12,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.20 : 30,504.42 = 8,651.40 : x
  2. Step 2: Convert to fraction form
    20,344.20/30,504.42 = 8,651.40/x
  3. Step 3: Cross multiply
    20,344.20x = 30,504.42 × 8,651.40
  4. Step 4: Simplify right side
    20,344.20x = 263,905,939.19
  5. Step 5: Solve for x
    x = 263,905,939.19/20,344.20
  6. Step 6: Final answer
    x = 12,972.05

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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.