Home / 27,020.80-40,555.20-15,913.60

Finding the Fourth Proportional to 27,020.80, 40,555.20 and 15,913.60

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Solution

The fourth proportional to 27,020.80, 40,555.20 and 15,913.60 is: 23,884.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,020.80 : 40,555.20 = 15,913.60 : x
  2. Step 2: Convert to fraction form
    27,020.80/40,555.20 = 15,913.60/x
  3. Step 3: Cross multiply
    27,020.80x = 40,555.20 × 15,913.60
  4. Step 4: Simplify right side
    27,020.80x = 645,379,230.72
  5. Step 5: Solve for x
    x = 645,379,230.72/27,020.80
  6. Step 6: Final answer
    x = 23,884.53

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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.