Home / 20,625.36-30,940.20-10,234.32

Finding the Fourth Proportional to 20,625.36, 30,940.20 and 10,234.32

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Solution

The fourth proportional to 20,625.36, 30,940.20 and 10,234.32 is: 15,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.36 : 30,940.20 = 10,234.32 : x
  2. Step 2: Convert to fraction form
    20,625.36/30,940.20 = 10,234.32/x
  3. Step 3: Cross multiply
    20,625.36x = 30,940.20 × 10,234.32
  4. Step 4: Simplify right side
    20,625.36x = 316,651,907.66
  5. Step 5: Solve for x
    x = 316,651,907.66/20,625.36
  6. Step 6: Final answer
    x = 15,352.55

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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.