Home / 30,642.22-45,951.99-10,915.54

Finding the Fourth Proportional to 30,642.22, 45,951.99 and 10,915.54

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Solution

The fourth proportional to 30,642.22, 45,951.99 and 10,915.54 is: 16,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,642.22 : 45,951.99 = 10,915.54 : x
  2. Step 2: Convert to fraction form
    30,642.22/45,951.99 = 10,915.54/x
  3. Step 3: Cross multiply
    30,642.22x = 45,951.99 × 10,915.54
  4. Step 4: Simplify right side
    30,642.22x = 501,590,784.92
  5. Step 5: Solve for x
    x = 501,590,784.92/30,642.22
  6. Step 6: Final answer
    x = 16,369.27

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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.