Home / 19,912.57-27,480.33-10,959.98

Finding the Fourth Proportional to 19,912.57, 27,480.33 and 10,959.98

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Solution

The fourth proportional to 19,912.57, 27,480.33 and 10,959.98 is: 15,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,912.57 : 27,480.33 = 10,959.98 : x
  2. Step 2: Convert to fraction form
    19,912.57/27,480.33 = 10,959.98/x
  3. Step 3: Cross multiply
    19,912.57x = 27,480.33 × 10,959.98
  4. Step 4: Simplify right side
    19,912.57x = 301,183,729.79
  5. Step 5: Solve for x
    x = 301,183,729.79/19,912.57
  6. Step 6: Final answer
    x = 15,125.31

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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.