Home / 19,735.36-27,231.12-11,670.28

Finding the Fourth Proportional to 19,735.36, 27,231.12 and 11,670.28

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Solution

The fourth proportional to 19,735.36, 27,231.12 and 11,670.28 is: 16,102.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,735.36 : 27,231.12 = 11,670.28 : x
  2. Step 2: Convert to fraction form
    19,735.36/27,231.12 = 11,670.28/x
  3. Step 3: Cross multiply
    19,735.36x = 27,231.12 × 11,670.28
  4. Step 4: Simplify right side
    19,735.36x = 317,794,795.11
  5. Step 5: Solve for x
    x = 317,794,795.11/19,735.36
  6. Step 6: Final answer
    x = 16,102.81

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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.