Home / 20,674.24-28,519.94-13,508.35

Finding the Fourth Proportional to 20,674.24, 28,519.94 and 13,508.35

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Solution

The fourth proportional to 20,674.24, 28,519.94 and 13,508.35 is: 18,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674.24 : 28,519.94 = 13,508.35 : x
  2. Step 2: Convert to fraction form
    20,674.24/28,519.94 = 13,508.35/x
  3. Step 3: Cross multiply
    20,674.24x = 28,519.94 × 13,508.35
  4. Step 4: Simplify right side
    20,674.24x = 385,257,338.44
  5. Step 5: Solve for x
    x = 385,257,338.44/20,674.24
  6. Step 6: Final answer
    x = 18,634.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.