Home / 30,147.25-45,195.35-11,416.96

Finding the Fourth Proportional to 30,147.25, 45,195.35 and 11,416.96

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Solution

The fourth proportional to 30,147.25, 45,195.35 and 11,416.96 is: 17,115.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,147.25 : 45,195.35 = 11,416.96 : x
  2. Step 2: Convert to fraction form
    30,147.25/45,195.35 = 11,416.96/x
  3. Step 3: Cross multiply
    30,147.25x = 45,195.35 × 11,416.96
  4. Step 4: Simplify right side
    30,147.25x = 515,993,503.14
  5. Step 5: Solve for x
    x = 515,993,503.14/30,147.25
  6. Step 6: Final answer
    x = 17,115.77

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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.