Home / 30,379.75-45,589.88-11,675.23

Finding the Fourth Proportional to 30,379.75, 45,589.88 and 11,675.23

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Solution

The fourth proportional to 30,379.75, 45,589.88 and 11,675.23 is: 17,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,379.75 : 45,589.88 = 11,675.23 : x
  2. Step 2: Convert to fraction form
    30,379.75/45,589.88 = 11,675.23/x
  3. Step 3: Cross multiply
    30,379.75x = 45,589.88 × 11,675.23
  4. Step 4: Simplify right side
    30,379.75x = 532,272,276.30
  5. Step 5: Solve for x
    x = 532,272,276.30/30,379.75
  6. Step 6: Final answer
    x = 17,520.63

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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.