Home / 28,350.36-39,112.20-17,020.49

Finding the Fourth Proportional to 28,350.36, 39,112.20 and 17,020.49

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Solution

The fourth proportional to 28,350.36, 39,112.20 and 17,020.49 is: 23,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.36 : 39,112.20 = 17,020.49 : x
  2. Step 2: Convert to fraction form
    28,350.36/39,112.20 = 17,020.49/x
  3. Step 3: Cross multiply
    28,350.36x = 39,112.20 × 17,020.49
  4. Step 4: Simplify right side
    28,350.36x = 665,708,613.42
  5. Step 5: Solve for x
    x = 665,708,613.42/28,350.36
  6. Step 6: Final answer
    x = 23,481.49

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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.