Home / 15,987.54-23,982.48-5,453.31

Finding the Fourth Proportional to 15,987.54, 23,982.48 and 5,453.31

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Solution

The fourth proportional to 15,987.54, 23,982.48 and 5,453.31 is: 8,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.54 : 23,982.48 = 5,453.31 : x
  2. Step 2: Convert to fraction form
    15,987.54/23,982.48 = 5,453.31/x
  3. Step 3: Cross multiply
    15,987.54x = 23,982.48 × 5,453.31
  4. Step 4: Simplify right side
    15,987.54x = 130,783,898.01
  5. Step 5: Solve for x
    x = 130,783,898.01/15,987.54
  6. Step 6: Final answer
    x = 8,180.36

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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.