Home / 18,539.79-27,800.46-11,528.61

Finding the Fourth Proportional to 18,539.79, 27,800.46 and 11,528.61

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Solution

The fourth proportional to 18,539.79, 27,800.46 and 11,528.61 is: 17,287.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.79 : 27,800.46 = 11,528.61 : x
  2. Step 2: Convert to fraction form
    18,539.79/27,800.46 = 11,528.61/x
  3. Step 3: Cross multiply
    18,539.79x = 27,800.46 × 11,528.61
  4. Step 4: Simplify right side
    18,539.79x = 320,500,661.16
  5. Step 5: Solve for x
    x = 320,500,661.16/18,539.79
  6. Step 6: Final answer
    x = 17,287.18

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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.