Home / 28,765.20-43,133.16-13,169.46

Finding the Fourth Proportional to 28,765.20, 43,133.16 and 13,169.46

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Solution

The fourth proportional to 28,765.20, 43,133.16 and 13,169.46 is: 19,747.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.20 : 43,133.16 = 13,169.46 : x
  2. Step 2: Convert to fraction form
    28,765.20/43,133.16 = 13,169.46/x
  3. Step 3: Cross multiply
    28,765.20x = 43,133.16 × 13,169.46
  4. Step 4: Simplify right side
    28,765.20x = 568,040,425.29
  5. Step 5: Solve for x
    x = 568,040,425.29/28,765.20
  6. Step 6: Final answer
    x = 19,747.49

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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.