Home / 27,906.04-38,512.22-15,330.92

Finding the Fourth Proportional to 27,906.04, 38,512.22 and 15,330.92

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Solution

The fourth proportional to 27,906.04, 38,512.22 and 15,330.92 is: 21,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,906.04 : 38,512.22 = 15,330.92 : x
  2. Step 2: Convert to fraction form
    27,906.04/38,512.22 = 15,330.92/x
  3. Step 3: Cross multiply
    27,906.04x = 38,512.22 × 15,330.92
  4. Step 4: Simplify right side
    27,906.04x = 590,427,763.84
  5. Step 5: Solve for x
    x = 590,427,763.84/27,906.04
  6. Step 6: Final answer
    x = 21,157.71

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Half scale
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Double scale
Find fourth proportional to 27,907.04, 38,513.60 and 15,331.92
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.