Home / 19,724.40-27,173.34-13,745.16

Finding the Fourth Proportional to 19,724.40, 27,173.34 and 13,745.16

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Solution

The fourth proportional to 19,724.40, 27,173.34 and 13,745.16 is: 18,936.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.40 : 27,173.34 = 13,745.16 : x
  2. Step 2: Convert to fraction form
    19,724.40/27,173.34 = 13,745.16/x
  3. Step 3: Cross multiply
    19,724.40x = 27,173.34 × 13,745.16
  4. Step 4: Simplify right side
    19,724.40x = 373,501,906.03
  5. Step 5: Solve for x
    x = 373,501,906.03/19,724.40
  6. Step 6: Final answer
    x = 18,936.03

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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.