Home / 27,765.37-38,316.54-15,190.12

Finding the Fourth Proportional to 27,765.37, 38,316.54 and 15,190.12

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Solution

The fourth proportional to 27,765.37, 38,316.54 and 15,190.12 is: 20,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,765.37 : 38,316.54 = 15,190.12 : x
  2. Step 2: Convert to fraction form
    27,765.37/38,316.54 = 15,190.12/x
  3. Step 3: Cross multiply
    27,765.37x = 38,316.54 × 15,190.12
  4. Step 4: Simplify right side
    27,765.37x = 582,032,840.58
  5. Step 5: Solve for x
    x = 582,032,840.58/27,765.37
  6. Step 6: Final answer
    x = 20,962.55

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Half scale
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Double scale
Find fourth proportional to 27,766.37, 38,317.92 and 15,191.12
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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.