Home / 21,194.04-29,249.10-12,243.20

Finding the Fourth Proportional to 21,194.04, 29,249.10 and 12,243.20

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Solution

The fourth proportional to 21,194.04, 29,249.10 and 12,243.20 is: 16,896.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194.04 : 29,249.10 = 12,243.20 : x
  2. Step 2: Convert to fraction form
    21,194.04/29,249.10 = 12,243.20/x
  3. Step 3: Cross multiply
    21,194.04x = 29,249.10 × 12,243.20
  4. Step 4: Simplify right side
    21,194.04x = 358,102,581.12
  5. Step 5: Solve for x
    x = 358,102,581.12/21,194.04
  6. Step 6: Final answer
    x = 16,896.38

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Half scale
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Double scale
Find fourth proportional to 21,195.04, 29,250.48 and 12,244.20
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.