Home / 27,218.99-40,790.19-21,647.61

Finding the Fourth Proportional to 27,218.99, 40,790.19 and 21,647.61

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Solution

The fourth proportional to 27,218.99, 40,790.19 and 21,647.61 is: 32,440.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,218.99 : 40,790.19 = 21,647.61 : x
  2. Step 2: Convert to fraction form
    27,218.99/40,790.19 = 21,647.61/x
  3. Step 3: Cross multiply
    27,218.99x = 40,790.19 × 21,647.61
  4. Step 4: Simplify right side
    27,218.99x = 883,010,077.09
  5. Step 5: Solve for x
    x = 883,010,077.09/27,218.99
  6. Step 6: Final answer
    x = 32,440.96

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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.