Home / 30,505.18-45,759.60-11,788.11

Finding the Fourth Proportional to 30,505.18, 45,759.60 and 11,788.11

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Solution

The fourth proportional to 30,505.18, 45,759.60 and 11,788.11 is: 17,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,505.18 : 45,759.60 = 11,788.11 : x
  2. Step 2: Convert to fraction form
    30,505.18/45,759.60 = 11,788.11/x
  3. Step 3: Cross multiply
    30,505.18x = 45,759.60 × 11,788.11
  4. Step 4: Simplify right side
    30,505.18x = 539,419,198.36
  5. Step 5: Solve for x
    x = 539,419,198.36/30,505.18
  6. Step 6: Final answer
    x = 17,682.87

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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.