Home / 30,540.86-45,804.11-17,219.60

Finding the Fourth Proportional to 30,540.86, 45,804.11 and 17,219.60

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Solution

The fourth proportional to 30,540.86, 45,804.11 and 17,219.60 is: 25,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,540.86 : 45,804.11 = 17,219.60 : x
  2. Step 2: Convert to fraction form
    30,540.86/45,804.11 = 17,219.60/x
  3. Step 3: Cross multiply
    30,540.86x = 45,804.11 × 17,219.60
  4. Step 4: Simplify right side
    30,540.86x = 788,728,452.56
  5. Step 5: Solve for x
    x = 788,728,452.56/30,540.86
  6. Step 6: Final answer
    x = 25,825.35

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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.