Home / 28,383.50-39,185.54-18,836.34

Finding the Fourth Proportional to 28,383.50, 39,185.54 and 18,836.34

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Solution

The fourth proportional to 28,383.50, 39,185.54 and 18,836.34 is: 26,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.50 : 39,185.54 = 18,836.34 : x
  2. Step 2: Convert to fraction form
    28,383.50/39,185.54 = 18,836.34/x
  3. Step 3: Cross multiply
    28,383.50x = 39,185.54 × 18,836.34
  4. Step 4: Simplify right side
    28,383.50x = 738,112,154.52
  5. Step 5: Solve for x
    x = 738,112,154.52/28,383.50
  6. Step 6: Final answer
    x = 26,004.97

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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.