Home / 38,921.58-53,692.17-22,778.28

Finding the Fourth Proportional to 38,921.58, 53,692.17 and 22,778.28

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Solution

The fourth proportional to 38,921.58, 53,692.17 and 22,778.28 is: 31,422.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,921.58 : 53,692.17 = 22,778.28 : x
  2. Step 2: Convert to fraction form
    38,921.58/53,692.17 = 22,778.28/x
  3. Step 3: Cross multiply
    38,921.58x = 53,692.17 × 22,778.28
  4. Step 4: Simplify right side
    38,921.58x = 1,223,015,196.65
  5. Step 5: Solve for x
    x = 1,223,015,196.65/38,921.58
  6. Step 6: Final answer
    x = 31,422.55

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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.