Home / 43,383.66-65,080.75-12,218.91

Finding the Fourth Proportional to 43,383.66, 65,080.75 and 12,218.91

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Solution

The fourth proportional to 43,383.66, 65,080.75 and 12,218.91 is: 18,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,383.66 : 65,080.75 = 12,218.91 : x
  2. Step 2: Convert to fraction form
    43,383.66/65,080.75 = 12,218.91/x
  3. Step 3: Cross multiply
    43,383.66x = 65,080.75 × 12,218.91
  4. Step 4: Simplify right side
    43,383.66x = 795,215,567.66
  5. Step 5: Solve for x
    x = 795,215,567.66/43,383.66
  6. Step 6: Final answer
    x = 18,329.84

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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.