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Finding the Fourth Proportional to 27,859.07, 41,787.07 and 20,370.30

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Solution

The fourth proportional to 27,859.07, 41,787.07 and 20,370.30 is: 30,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,859.07 : 41,787.07 = 20,370.30 : x
  2. Step 2: Convert to fraction form
    27,859.07/41,787.07 = 20,370.30/x
  3. Step 3: Cross multiply
    27,859.07x = 41,787.07 × 20,370.30
  4. Step 4: Simplify right side
    27,859.07x = 851,215,152.02
  5. Step 5: Solve for x
    x = 851,215,152.02/27,859.07
  6. Step 6: Final answer
    x = 30,554.33

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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.