Home / 27,627.20-41,440.80-20,715.20

Finding the Fourth Proportional to 27,627.20, 41,440.80 and 20,715.20

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Solution

The fourth proportional to 27,627.20, 41,440.80 and 20,715.20 is: 31,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,627.20 : 41,440.80 = 20,715.20 : x
  2. Step 2: Convert to fraction form
    27,627.20/41,440.80 = 20,715.20/x
  3. Step 3: Cross multiply
    27,627.20x = 41,440.80 × 20,715.20
  4. Step 4: Simplify right side
    27,627.20x = 858,454,460.16
  5. Step 5: Solve for x
    x = 858,454,460.16/27,627.20
  6. Step 6: Final answer
    x = 31,072.80

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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.