Home / 15,856.31-23,782.56-4,170.44

Finding the Fourth Proportional to 15,856.31, 23,782.56 and 4,170.44

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Solution

The fourth proportional to 15,856.31, 23,782.56 and 4,170.44 is: 6,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,856.31 : 23,782.56 = 4,170.44 : x
  2. Step 2: Convert to fraction form
    15,856.31/23,782.56 = 4,170.44/x
  3. Step 3: Cross multiply
    15,856.31x = 23,782.56 × 4,170.44
  4. Step 4: Simplify right side
    15,856.31x = 99,183,739.53
  5. Step 5: Solve for x
    x = 99,183,739.53/15,856.31
  6. Step 6: Final answer
    x = 6,255.16

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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.