Home / 20,344.55-30,498.59-8,651.39

Finding the Fourth Proportional to 20,344.55, 30,498.59 and 8,651.39

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Solution

The fourth proportional to 20,344.55, 30,498.59 and 8,651.39 is: 12,969.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.55 : 30,498.59 = 8,651.39 : x
  2. Step 2: Convert to fraction form
    20,344.55/30,498.59 = 8,651.39/x
  3. Step 3: Cross multiply
    20,344.55x = 30,498.59 × 8,651.39
  4. Step 4: Simplify right side
    20,344.55x = 263,855,065.68
  5. Step 5: Solve for x
    x = 263,855,065.68/20,344.55
  6. Step 6: Final answer
    x = 12,969.33

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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.