Home / 32,112.90-48,183.12-12,405.30

Finding the Fourth Proportional to 32,112.90, 48,183.12 and 12,405.30

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Solution

The fourth proportional to 32,112.90, 48,183.12 and 12,405.30 is: 18,613.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,112.90 : 48,183.12 = 12,405.30 : x
  2. Step 2: Convert to fraction form
    32,112.90/48,183.12 = 12,405.30/x
  3. Step 3: Cross multiply
    32,112.90x = 48,183.12 × 12,405.30
  4. Step 4: Simplify right side
    32,112.90x = 597,726,058.54
  5. Step 5: Solve for x
    x = 597,726,058.54/32,112.90
  6. Step 6: Final answer
    x = 18,613.27

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1.5x scale

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.