Home / 43,613.88-65,335.61-20,785.24

Finding the Fourth Proportional to 43,613.88, 65,335.61 and 20,785.24

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Solution

The fourth proportional to 43,613.88, 65,335.61 and 20,785.24 is: 31,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,613.88 : 65,335.61 = 20,785.24 : x
  2. Step 2: Convert to fraction form
    43,613.88/65,335.61 = 20,785.24/x
  3. Step 3: Cross multiply
    43,613.88x = 65,335.61 × 20,785.24
  4. Step 4: Simplify right side
    43,613.88x = 1,358,016,468.03
  5. Step 5: Solve for x
    x = 1,358,016,468.03/43,613.88
  6. Step 6: Final answer
    x = 31,137.26

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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.