Home / 27,043.80-40,523.89-21,106.61

Finding the Fourth Proportional to 27,043.80, 40,523.89 and 21,106.61

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Solution

The fourth proportional to 27,043.80, 40,523.89 and 21,106.61 is: 31,627.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,043.80 : 40,523.89 = 21,106.61 : x
  2. Step 2: Convert to fraction form
    27,043.80/40,523.89 = 21,106.61/x
  3. Step 3: Cross multiply
    27,043.80x = 40,523.89 × 21,106.61
  4. Step 4: Simplify right side
    27,043.80x = 855,321,941.91
  5. Step 5: Solve for x
    x = 855,321,941.91/27,043.80
  6. Step 6: Final answer
    x = 31,627.28

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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.