Home / 21,927.44-30,255.42-12,976.23

Finding the Fourth Proportional to 21,927.44, 30,255.42 and 12,976.23

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Solution

The fourth proportional to 21,927.44, 30,255.42 and 12,976.23 is: 17,904.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.44 : 30,255.42 = 12,976.23 : x
  2. Step 2: Convert to fraction form
    21,927.44/30,255.42 = 12,976.23/x
  3. Step 3: Cross multiply
    21,927.44x = 30,255.42 × 12,976.23
  4. Step 4: Simplify right side
    21,927.44x = 392,601,450.79
  5. Step 5: Solve for x
    x = 392,601,450.79/21,927.44
  6. Step 6: Final answer
    x = 17,904.57

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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.