Home / 29,166.39-40,228.13-21,996.60

Finding the Fourth Proportional to 29,166.39, 40,228.13 and 21,996.60

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Solution

The fourth proportional to 29,166.39, 40,228.13 and 21,996.60 is: 30,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,166.39 : 40,228.13 = 21,996.60 : x
  2. Step 2: Convert to fraction form
    29,166.39/40,228.13 = 21,996.60/x
  3. Step 3: Cross multiply
    29,166.39x = 40,228.13 × 21,996.60
  4. Step 4: Simplify right side
    29,166.39x = 884,881,974.38
  5. Step 5: Solve for x
    x = 884,881,974.38/29,166.39
  6. Step 6: Final answer
    x = 30,339.10

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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.