Home / 27,612.20-41,418.31-7,890.75

Finding the Fourth Proportional to 27,612.20, 41,418.31 and 7,890.75

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Solution

The fourth proportional to 27,612.20, 41,418.31 and 7,890.75 is: 11,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,612.20 : 41,418.31 = 7,890.75 : x
  2. Step 2: Convert to fraction form
    27,612.20/41,418.31 = 7,890.75/x
  3. Step 3: Cross multiply
    27,612.20x = 41,418.31 × 7,890.75
  4. Step 4: Simplify right side
    27,612.20x = 326,821,721.63
  5. Step 5: Solve for x
    x = 326,821,721.63/27,612.20
  6. Step 6: Final answer
    x = 11,836.13

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1.5x scale

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.