Home / 38,081.16-52,554.60-21,086.10

Finding the Fourth Proportional to 38,081.16, 52,554.60 and 21,086.10

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Solution

The fourth proportional to 38,081.16, 52,554.60 and 21,086.10 is: 29,100.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,081.16 : 52,554.60 = 21,086.10 : x
  2. Step 2: Convert to fraction form
    38,081.16/52,554.60 = 21,086.10/x
  3. Step 3: Cross multiply
    38,081.16x = 52,554.60 × 21,086.10
  4. Step 4: Simplify right side
    38,081.16x = 1,108,171,551.06
  5. Step 5: Solve for x
    x = 1,108,171,551.06/38,081.16
  6. Step 6: Final answer
    x = 29,100.26

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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.