Home / 38,996.14-53,817.13-21,994.18

Finding the Fourth Proportional to 38,996.14, 53,817.13 and 21,994.18

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Solution

The fourth proportional to 38,996.14, 53,817.13 and 21,994.18 is: 30,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,996.14 : 53,817.13 = 21,994.18 : x
  2. Step 2: Convert to fraction form
    38,996.14/53,817.13 = 21,994.18/x
  3. Step 3: Cross multiply
    38,996.14x = 53,817.13 × 21,994.18
  4. Step 4: Simplify right side
    38,996.14x = 1,183,663,644.30
  5. Step 5: Solve for x
    x = 1,183,663,644.30/38,996.14
  6. Step 6: Final answer
    x = 30,353.35

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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.