Home / 38,765.04-53,496.12-21,996.72

Finding the Fourth Proportional to 38,765.04, 53,496.12 and 21,996.72

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Solution

The fourth proportional to 38,765.04, 53,496.12 and 21,996.72 is: 30,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.04 : 53,496.12 = 21,996.72 : x
  2. Step 2: Convert to fraction form
    38,765.04/53,496.12 = 21,996.72/x
  3. Step 3: Cross multiply
    38,765.04x = 53,496.12 × 21,996.72
  4. Step 4: Simplify right side
    38,765.04x = 1,176,739,172.73
  5. Step 5: Solve for x
    x = 1,176,739,172.73/38,765.04
  6. Step 6: Final answer
    x = 30,355.68

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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.