Home / 38,546.24-53,193.12-21,778.88

Finding the Fourth Proportional to 38,546.24, 53,193.12 and 21,778.88

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Solution

The fourth proportional to 38,546.24, 53,193.12 and 21,778.88 is: 30,054.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,546.24 : 53,193.12 = 21,778.88 : x
  2. Step 2: Convert to fraction form
    38,546.24/53,193.12 = 21,778.88/x
  3. Step 3: Cross multiply
    38,546.24x = 53,193.12 × 21,778.88
  4. Step 4: Simplify right side
    38,546.24x = 1,158,486,577.31
  5. Step 5: Solve for x
    x = 1,158,486,577.31/38,546.24
  6. Step 6: Final answer
    x = 30,054.46

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Half scale
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Double scale
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Similar ratio
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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.