Home / 43,455.28-65,182.92-20,078.68

Finding the Fourth Proportional to 43,455.28, 65,182.92 and 20,078.68

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Solution

The fourth proportional to 43,455.28, 65,182.92 and 20,078.68 is: 30,118.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,455.28 : 65,182.92 = 20,078.68 : x
  2. Step 2: Convert to fraction form
    43,455.28/65,182.92 = 20,078.68/x
  3. Step 3: Cross multiply
    43,455.28x = 65,182.92 × 20,078.68
  4. Step 4: Simplify right side
    43,455.28x = 1,308,786,992.15
  5. Step 5: Solve for x
    x = 1,308,786,992.15/43,455.28
  6. Step 6: Final answer
    x = 30,118.02

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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.