Home / 27,449.40-41,141.70-20,515.80

Finding the Fourth Proportional to 27,449.40, 41,141.70 and 20,515.80

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Solution

The fourth proportional to 27,449.40, 41,141.70 and 20,515.80 is: 30,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,449.40 : 41,141.70 = 20,515.80 : x
  2. Step 2: Convert to fraction form
    27,449.40/41,141.70 = 20,515.80/x
  3. Step 3: Cross multiply
    27,449.40x = 41,141.70 × 20,515.80
  4. Step 4: Simplify right side
    27,449.40x = 844,054,888.86
  5. Step 5: Solve for x
    x = 844,054,888.86/27,449.40
  6. Step 6: Final answer
    x = 30,749.48

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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.