Home / 20,172.63-27,965.83-19,106.27

Finding the Fourth Proportional to 20,172.63, 27,965.83 and 19,106.27

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Solution

The fourth proportional to 20,172.63, 27,965.83 and 19,106.27 is: 26,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.63 : 27,965.83 = 19,106.27 : x
  2. Step 2: Convert to fraction form
    20,172.63/27,965.83 = 19,106.27/x
  3. Step 3: Cross multiply
    20,172.63x = 27,965.83 × 19,106.27
  4. Step 4: Simplify right side
    20,172.63x = 534,322,698.75
  5. Step 5: Solve for x
    x = 534,322,698.75/20,172.63
  6. Step 6: Final answer
    x = 26,487.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.