Home / 19,955.88-27,539.19-11,998.22

Finding the Fourth Proportional to 19,955.88, 27,539.19 and 11,998.22

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Solution

The fourth proportional to 19,955.88, 27,539.19 and 11,998.22 is: 16,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.88 : 27,539.19 = 11,998.22 : x
  2. Step 2: Convert to fraction form
    19,955.88/27,539.19 = 11,998.22/x
  3. Step 3: Cross multiply
    19,955.88x = 27,539.19 × 11,998.22
  4. Step 4: Simplify right side
    19,955.88x = 330,421,122.55
  5. Step 5: Solve for x
    x = 330,421,122.55/19,955.88
  6. Step 6: Final answer
    x = 16,557.58

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Half scale
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Double scale
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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.