Home / 25,102.80-37,632.60-12,790.80

Finding the Fourth Proportional to 25,102.80, 37,632.60 and 12,790.80

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Solution

The fourth proportional to 25,102.80, 37,632.60 and 12,790.80 is: 19,175.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,102.80 : 37,632.60 = 12,790.80 : x
  2. Step 2: Convert to fraction form
    25,102.80/37,632.60 = 12,790.80/x
  3. Step 3: Cross multiply
    25,102.80x = 37,632.60 × 12,790.80
  4. Step 4: Simplify right side
    25,102.80x = 481,351,060.08
  5. Step 5: Solve for x
    x = 481,351,060.08/25,102.80
  6. Step 6: Final answer
    x = 19,175.19

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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.