Home / 20,629.67-28,469.34-13,464.16

Finding the Fourth Proportional to 20,629.67, 28,469.34 and 13,464.16

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Solution

The fourth proportional to 20,629.67, 28,469.34 and 13,464.16 is: 18,580.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.67 : 28,469.34 = 13,464.16 : x
  2. Step 2: Convert to fraction form
    20,629.67/28,469.34 = 13,464.16/x
  3. Step 3: Cross multiply
    20,629.67x = 28,469.34 × 13,464.16
  4. Step 4: Simplify right side
    20,629.67x = 383,315,677.68
  5. Step 5: Solve for x
    x = 383,315,677.68/20,629.67
  6. Step 6: Final answer
    x = 18,580.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.