Home / 22,201.89-30,638.25-12,130.11

Finding the Fourth Proportional to 22,201.89, 30,638.25 and 12,130.11

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Solution

The fourth proportional to 22,201.89, 30,638.25 and 12,130.11 is: 16,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.89 : 30,638.25 = 12,130.11 : x
  2. Step 2: Convert to fraction form
    22,201.89/30,638.25 = 12,130.11/x
  3. Step 3: Cross multiply
    22,201.89x = 30,638.25 × 12,130.11
  4. Step 4: Simplify right side
    22,201.89x = 371,645,282.06
  5. Step 5: Solve for x
    x = 371,645,282.06/22,201.89
  6. Step 6: Final answer
    x = 16,739.36

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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.