Home / 19,857.97-27,403.54-11,790.37

Finding the Fourth Proportional to 19,857.97, 27,403.54 and 11,790.37

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Solution

The fourth proportional to 19,857.97, 27,403.54 and 11,790.37 is: 16,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857.97 : 27,403.54 = 11,790.37 : x
  2. Step 2: Convert to fraction form
    19,857.97/27,403.54 = 11,790.37/x
  3. Step 3: Cross multiply
    19,857.97x = 27,403.54 × 11,790.37
  4. Step 4: Simplify right side
    19,857.97x = 323,097,875.91
  5. Step 5: Solve for x
    x = 323,097,875.91/19,857.97
  6. Step 6: Final answer
    x = 16,270.44

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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.