Home / 13,571.41-20,327.04-10,428.28

Finding the Fourth Proportional to 13,571.41, 20,327.04 and 10,428.28

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Solution

The fourth proportional to 13,571.41, 20,327.04 and 10,428.28 is: 15,619.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.41 : 20,327.04 = 10,428.28 : x
  2. Step 2: Convert to fraction form
    13,571.41/20,327.04 = 10,428.28/x
  3. Step 3: Cross multiply
    13,571.41x = 20,327.04 × 10,428.28
  4. Step 4: Simplify right side
    13,571.41x = 211,975,974.77
  5. Step 5: Solve for x
    x = 211,975,974.77/13,571.41
  6. Step 6: Final answer
    x = 15,619.31

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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.