Home / 28,682.74-39,595.56-19,138.54

Finding the Fourth Proportional to 28,682.74, 39,595.56 and 19,138.54

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Solution

The fourth proportional to 28,682.74, 39,595.56 and 19,138.54 is: 26,420.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.74 : 39,595.56 = 19,138.54 : x
  2. Step 2: Convert to fraction form
    28,682.74/39,595.56 = 19,138.54/x
  3. Step 3: Cross multiply
    28,682.74x = 39,595.56 × 19,138.54
  4. Step 4: Simplify right side
    28,682.74x = 757,801,208.88
  5. Step 5: Solve for x
    x = 757,801,208.88/28,682.74
  6. Step 6: Final answer
    x = 26,420.11

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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.