Home / 28,984.88-43,506.48-21,170

Finding the Fourth Proportional to 28,984.88, 43,506.48 and 21,170

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Solution

The fourth proportional to 28,984.88, 43,506.48 and 21,170 is: 31,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,984.88 : 43,506.48 = 21,170 : x
  2. Step 2: Convert to fraction form
    28,984.88/43,506.48 = 21,170/x
  3. Step 3: Cross multiply
    28,984.88x = 43,506.48 × 21,170
  4. Step 4: Simplify right side
    28,984.88x = 921,032,181.60
  5. Step 5: Solve for x
    x = 921,032,181.60/28,984.88
  6. Step 6: Final answer
    x = 31,776.30

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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.