Home / 27,356.20-40,993.29-21,106.87

Finding the Fourth Proportional to 27,356.20, 40,993.29 and 21,106.87

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Solution

The fourth proportional to 27,356.20, 40,993.29 and 21,106.87 is: 31,628.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,356.20 : 40,993.29 = 21,106.87 : x
  2. Step 2: Convert to fraction form
    27,356.20/40,993.29 = 21,106.87/x
  3. Step 3: Cross multiply
    27,356.20x = 40,993.29 × 21,106.87
  4. Step 4: Simplify right side
    27,356.20x = 865,240,042.90
  5. Step 5: Solve for x
    x = 865,240,042.90/27,356.20
  6. Step 6: Final answer
    x = 31,628.66

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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.