Home / 13,571.21-20,356.72-3,710.48

Finding the Fourth Proportional to 13,571.21, 20,356.72 and 3,710.48

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Solution

The fourth proportional to 13,571.21, 20,356.72 and 3,710.48 is: 5,565.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.21 : 20,356.72 = 3,710.48 : x
  2. Step 2: Convert to fraction form
    13,571.21/20,356.72 = 3,710.48/x
  3. Step 3: Cross multiply
    13,571.21x = 20,356.72 × 3,710.48
  4. Step 4: Simplify right side
    13,571.21x = 75,533,091.37
  5. Step 5: Solve for x
    x = 75,533,091.37/13,571.21
  6. Step 6: Final answer
    x = 5,565.68

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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.