Home / 19,238.40-28,857.60-17,999.10

Finding the Fourth Proportional to 19,238.40, 28,857.60 and 17,999.10

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Solution

The fourth proportional to 19,238.40, 28,857.60 and 17,999.10 is: 26,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,238.40 : 28,857.60 = 17,999.10 : x
  2. Step 2: Convert to fraction form
    19,238.40/28,857.60 = 17,999.10/x
  3. Step 3: Cross multiply
    19,238.40x = 28,857.60 × 17,999.10
  4. Step 4: Simplify right side
    19,238.40x = 519,410,828.16
  5. Step 5: Solve for x
    x = 519,410,828.16/19,238.40
  6. Step 6: Final answer
    x = 26,998.65

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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.