Home / 38,918.82-53,692.05-28,734.24

Finding the Fourth Proportional to 38,918.82, 53,692.05 and 28,734.24

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Solution

The fourth proportional to 38,918.82, 53,692.05 and 28,734.24 is: 39,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,918.82 : 53,692.05 = 28,734.24 : x
  2. Step 2: Convert to fraction form
    38,918.82/53,692.05 = 28,734.24/x
  3. Step 3: Cross multiply
    38,918.82x = 53,692.05 × 28,734.24
  4. Step 4: Simplify right side
    38,918.82x = 1,542,800,250.79
  5. Step 5: Solve for x
    x = 1,542,800,250.79/38,918.82
  6. Step 6: Final answer
    x = 39,641.50

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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.