Home / 21,186.19-29,236.86-11,626.24

Finding the Fourth Proportional to 21,186.19, 29,236.86 and 11,626.24

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Solution

The fourth proportional to 21,186.19, 29,236.86 and 11,626.24 is: 16,044.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.19 : 29,236.86 = 11,626.24 : x
  2. Step 2: Convert to fraction form
    21,186.19/29,236.86 = 11,626.24/x
  3. Step 3: Cross multiply
    21,186.19x = 29,236.86 × 11,626.24
  4. Step 4: Simplify right side
    21,186.19x = 339,914,678.11
  5. Step 5: Solve for x
    x = 339,914,678.11/21,186.19
  6. Step 6: Final answer
    x = 16,044.16

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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.