Home / 27,446.40-41,137.20-20,512.80

Finding the Fourth Proportional to 27,446.40, 41,137.20 and 20,512.80

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Solution

The fourth proportional to 27,446.40, 41,137.20 and 20,512.80 is: 30,744.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,446.40 : 41,137.20 = 20,512.80 : x
  2. Step 2: Convert to fraction form
    27,446.40/41,137.20 = 20,512.80/x
  3. Step 3: Cross multiply
    27,446.40x = 41,137.20 × 20,512.80
  4. Step 4: Simplify right side
    27,446.40x = 843,839,156.16
  5. Step 5: Solve for x
    x = 843,839,156.16/27,446.40
  6. Step 6: Final answer
    x = 30,744.98

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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.