Home / 28,481.16-39,304.53-15,735

Finding the Fourth Proportional to 28,481.16, 39,304.53 and 15,735

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Solution

The fourth proportional to 28,481.16, 39,304.53 and 15,735 is: 21,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.16 : 39,304.53 = 15,735 : x
  2. Step 2: Convert to fraction form
    28,481.16/39,304.53 = 15,735/x
  3. Step 3: Cross multiply
    28,481.16x = 39,304.53 × 15,735
  4. Step 4: Simplify right side
    28,481.16x = 618,456,779.55
  5. Step 5: Solve for x
    x = 618,456,779.55/28,481.16
  6. Step 6: Final answer
    x = 21,714.59

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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.