Home / 19,775.36-27,297.87-12,971.97

Finding the Fourth Proportional to 19,775.36, 27,297.87 and 12,971.97

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Solution

The fourth proportional to 19,775.36, 27,297.87 and 12,971.97 is: 17,906.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,775.36 : 27,297.87 = 12,971.97 : x
  2. Step 2: Convert to fraction form
    19,775.36/27,297.87 = 12,971.97/x
  3. Step 3: Cross multiply
    19,775.36x = 27,297.87 × 12,971.97
  4. Step 4: Simplify right side
    19,775.36x = 354,107,150.70
  5. Step 5: Solve for x
    x = 354,107,150.70/19,775.36
  6. Step 6: Final answer
    x = 17,906.48

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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.