Home / 21,738.75-32,615.51-13,724.21

Finding the Fourth Proportional to 21,738.75, 32,615.51 and 13,724.21

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Solution

The fourth proportional to 21,738.75, 32,615.51 and 13,724.21 is: 20,590.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,738.75 : 32,615.51 = 13,724.21 : x
  2. Step 2: Convert to fraction form
    21,738.75/32,615.51 = 13,724.21/x
  3. Step 3: Cross multiply
    21,738.75x = 32,615.51 × 13,724.21
  4. Step 4: Simplify right side
    21,738.75x = 447,622,106.88
  5. Step 5: Solve for x
    x = 447,622,106.88/21,738.75
  6. Step 6: Final answer
    x = 20,590.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.