Home / 27,971.79-38,601.07-15,396.54

Finding the Fourth Proportional to 27,971.79, 38,601.07 and 15,396.54

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Solution

The fourth proportional to 27,971.79, 38,601.07 and 15,396.54 is: 21,247.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,971.79 : 38,601.07 = 15,396.54 : x
  2. Step 2: Convert to fraction form
    27,971.79/38,601.07 = 15,396.54/x
  3. Step 3: Cross multiply
    27,971.79x = 38,601.07 × 15,396.54
  4. Step 4: Simplify right side
    27,971.79x = 594,322,918.30
  5. Step 5: Solve for x
    x = 594,322,918.30/27,971.79
  6. Step 6: Final answer
    x = 21,247.23

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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.