Home / 14,220.32-21,330.48-3,833.12

Finding the Fourth Proportional to 14,220.32, 21,330.48 and 3,833.12

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Solution

The fourth proportional to 14,220.32, 21,330.48 and 3,833.12 is: 5,749.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.32 : 21,330.48 = 3,833.12 : x
  2. Step 2: Convert to fraction form
    14,220.32/21,330.48 = 3,833.12/x
  3. Step 3: Cross multiply
    14,220.32x = 21,330.48 × 3,833.12
  4. Step 4: Simplify right side
    14,220.32x = 81,762,289.50
  5. Step 5: Solve for x
    x = 81,762,289.50/14,220.32
  6. Step 6: Final answer
    x = 5,749.68

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.