Home / 19,642.39-27,104.45-11,141.80

Finding the Fourth Proportional to 19,642.39, 27,104.45 and 11,141.80

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Solution

The fourth proportional to 19,642.39, 27,104.45 and 11,141.80 is: 15,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.39 : 27,104.45 = 11,141.80 : x
  2. Step 2: Convert to fraction form
    19,642.39/27,104.45 = 11,141.80/x
  3. Step 3: Cross multiply
    19,642.39x = 27,104.45 × 11,141.80
  4. Step 4: Simplify right side
    19,642.39x = 301,992,237.54
  5. Step 5: Solve for x
    x = 301,992,237.54/19,642.39
  6. Step 6: Final answer
    x = 15,374.52

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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.