Home / 20,614.90-28,448.21-11,662.18

Finding the Fourth Proportional to 20,614.90, 28,448.21 and 11,662.18

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Solution

The fourth proportional to 20,614.90, 28,448.21 and 11,662.18 is: 16,093.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.90 : 28,448.21 = 11,662.18 : x
  2. Step 2: Convert to fraction form
    20,614.90/28,448.21 = 11,662.18/x
  3. Step 3: Cross multiply
    20,614.90x = 28,448.21 × 11,662.18
  4. Step 4: Simplify right side
    20,614.90x = 331,768,145.70
  5. Step 5: Solve for x
    x = 331,768,145.70/20,614.90
  6. Step 6: Final answer
    x = 16,093.61

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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.