Home / 20,186.88-27,834.06-13,816.54

Finding the Fourth Proportional to 20,186.88, 27,834.06 and 13,816.54

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Solution

The fourth proportional to 20,186.88, 27,834.06 and 13,816.54 is: 19,050.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.88 : 27,834.06 = 13,816.54 : x
  2. Step 2: Convert to fraction form
    20,186.88/27,834.06 = 13,816.54/x
  3. Step 3: Cross multiply
    20,186.88x = 27,834.06 × 13,816.54
  4. Step 4: Simplify right side
    20,186.88x = 384,570,403.35
  5. Step 5: Solve for x
    x = 384,570,403.35/20,186.88
  6. Step 6: Final answer
    x = 19,050.51

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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.