Home / 17,990.12-26,981.39-4,842.61

Finding the Fourth Proportional to 17,990.12, 26,981.39 and 4,842.61

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Solution

The fourth proportional to 17,990.12, 26,981.39 and 4,842.61 is: 7,262.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.12 : 26,981.39 = 4,842.61 : x
  2. Step 2: Convert to fraction form
    17,990.12/26,981.39 = 4,842.61/x
  3. Step 3: Cross multiply
    17,990.12x = 26,981.39 × 4,842.61
  4. Step 4: Simplify right side
    17,990.12x = 130,660,293.68
  5. Step 5: Solve for x
    x = 130,660,293.68/17,990.12
  6. Step 6: Final answer
    x = 7,262.89

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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.