Home / 20,446.03-30,643.39-8,745.49

Finding the Fourth Proportional to 20,446.03, 30,643.39 and 8,745.49

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Solution

The fourth proportional to 20,446.03, 30,643.39 and 8,745.49 is: 13,107.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.03 : 30,643.39 = 8,745.49 : x
  2. Step 2: Convert to fraction form
    20,446.03/30,643.39 = 8,745.49/x
  3. Step 3: Cross multiply
    20,446.03x = 30,643.39 × 8,745.49
  4. Step 4: Simplify right side
    20,446.03x = 267,991,460.81
  5. Step 5: Solve for x
    x = 267,991,460.81/20,446.03
  6. Step 6: Final answer
    x = 13,107.26

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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.