Home / 13,544.21-20,284.73-13,170.45

Finding the Fourth Proportional to 13,544.21, 20,284.73 and 13,170.45

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Solution

The fourth proportional to 13,544.21, 20,284.73 and 13,170.45 is: 19,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.21 : 20,284.73 = 13,170.45 : x
  2. Step 2: Convert to fraction form
    13,544.21/20,284.73 = 13,170.45/x
  3. Step 3: Cross multiply
    13,544.21x = 20,284.73 × 13,170.45
  4. Step 4: Simplify right side
    13,544.21x = 267,158,967.73
  5. Step 5: Solve for x
    x = 267,158,967.73/13,544.21
  6. Step 6: Final answer
    x = 19,724.95

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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.