Home / 19,955.96-27,539.39-11,003.78

Finding the Fourth Proportional to 19,955.96, 27,539.39 and 11,003.78

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Solution

The fourth proportional to 19,955.96, 27,539.39 and 11,003.78 is: 15,185.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.96 : 27,539.39 = 11,003.78 : x
  2. Step 2: Convert to fraction form
    19,955.96/27,539.39 = 11,003.78/x
  3. Step 3: Cross multiply
    19,955.96x = 27,539.39 × 11,003.78
  4. Step 4: Simplify right side
    19,955.96x = 303,037,485.25
  5. Step 5: Solve for x
    x = 303,037,485.25/19,955.96
  6. Step 6: Final answer
    x = 15,185.31

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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.