Home / 19,905.14-27,459.91-12,833.84

Finding the Fourth Proportional to 19,905.14, 27,459.91 and 12,833.84

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Solution

The fourth proportional to 19,905.14, 27,459.91 and 12,833.84 is: 17,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.14 : 27,459.91 = 12,833.84 : x
  2. Step 2: Convert to fraction form
    19,905.14/27,459.91 = 12,833.84/x
  3. Step 3: Cross multiply
    19,905.14x = 27,459.91 × 12,833.84
  4. Step 4: Simplify right side
    19,905.14x = 352,416,176.05
  5. Step 5: Solve for x
    x = 352,416,176.05/19,905.14
  6. Step 6: Final answer
    x = 17,704.78

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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.