Home / 27,356.74-40,994.04-21,107.38

Finding the Fourth Proportional to 27,356.74, 40,994.04 and 21,107.38

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Solution

The fourth proportional to 27,356.74, 40,994.04 and 21,107.38 is: 31,629.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,356.74 : 40,994.04 = 21,107.38 : x
  2. Step 2: Convert to fraction form
    27,356.74/40,994.04 = 21,107.38/x
  3. Step 3: Cross multiply
    27,356.74x = 40,994.04 × 21,107.38
  4. Step 4: Simplify right side
    27,356.74x = 865,276,780.02
  5. Step 5: Solve for x
    x = 865,276,780.02/27,356.74
  6. Step 6: Final answer
    x = 31,629.38

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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.