Home / 20,191.41-27,841.77-13,819.01

Finding the Fourth Proportional to 20,191.41, 27,841.77 and 13,819.01

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Solution

The fourth proportional to 20,191.41, 27,841.77 and 13,819.01 is: 19,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.41 : 27,841.77 = 13,819.01 : x
  2. Step 2: Convert to fraction form
    20,191.41/27,841.77 = 13,819.01/x
  3. Step 3: Cross multiply
    20,191.41x = 27,841.77 × 13,819.01
  4. Step 4: Simplify right side
    20,191.41x = 384,745,558.84
  5. Step 5: Solve for x
    x = 384,745,558.84/20,191.41
  6. Step 6: Final answer
    x = 19,054.91

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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.