Home / 30,388.74-41,933.62-17,638.54

Finding the Fourth Proportional to 30,388.74, 41,933.62 and 17,638.54

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Solution

The fourth proportional to 30,388.74, 41,933.62 and 17,638.54 is: 24,339.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,388.74 : 41,933.62 = 17,638.54 : x
  2. Step 2: Convert to fraction form
    30,388.74/41,933.62 = 17,638.54/x
  3. Step 3: Cross multiply
    30,388.74x = 41,933.62 × 17,638.54
  4. Step 4: Simplify right side
    30,388.74x = 739,647,833.71
  5. Step 5: Solve for x
    x = 739,647,833.71/30,388.74
  6. Step 6: Final answer
    x = 24,339.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.