Home / 20,571.71-30,857.33-6,531.36

Finding the Fourth Proportional to 20,571.71, 30,857.33 and 6,531.36

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Solution

The fourth proportional to 20,571.71, 30,857.33 and 6,531.36 is: 9,796.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,571.71 : 30,857.33 = 6,531.36 : x
  2. Step 2: Convert to fraction form
    20,571.71/30,857.33 = 6,531.36/x
  3. Step 3: Cross multiply
    20,571.71x = 30,857.33 × 6,531.36
  4. Step 4: Simplify right side
    20,571.71x = 201,540,206.99
  5. Step 5: Solve for x
    x = 201,540,206.99/20,571.71
  6. Step 6: Final answer
    x = 9,796.96

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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.