Home / 21,194.22-29,247.90-11,762.76

Finding the Fourth Proportional to 21,194.22, 29,247.90 and 11,762.76

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Solution

The fourth proportional to 21,194.22, 29,247.90 and 11,762.76 is: 16,232.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.22 : 29,247.90 = 11,762.76 : x
  2. Step 2: Convert to fraction form
    21,194.22/29,247.90 = 11,762.76/x
  3. Step 3: Cross multiply
    21,194.22x = 29,247.90 × 11,762.76
  4. Step 4: Simplify right side
    21,194.22x = 344,036,028.20
  5. Step 5: Solve for x
    x = 344,036,028.20/21,194.22
  6. Step 6: Final answer
    x = 16,232.54

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Half scale
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Double scale
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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.