Home / 27,819.25-41,756.21-20,402.58

Finding the Fourth Proportional to 27,819.25, 41,756.21 and 20,402.58

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Solution

The fourth proportional to 27,819.25, 41,756.21 and 20,402.58 is: 30,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,819.25 : 41,756.21 = 20,402.58 : x
  2. Step 2: Convert to fraction form
    27,819.25/41,756.21 = 20,402.58/x
  3. Step 3: Cross multiply
    27,819.25x = 41,756.21 × 20,402.58
  4. Step 4: Simplify right side
    27,819.25x = 851,934,546.10
  5. Step 5: Solve for x
    x = 851,934,546.10/27,819.25
  6. Step 6: Final answer
    x = 30,623.92

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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.