Home / 29,105.14-43,621.20-12,445.60

Finding the Fourth Proportional to 29,105.14, 43,621.20 and 12,445.60

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Solution

The fourth proportional to 29,105.14, 43,621.20 and 12,445.60 is: 18,652.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,105.14 : 43,621.20 = 12,445.60 : x
  2. Step 2: Convert to fraction form
    29,105.14/43,621.20 = 12,445.60/x
  3. Step 3: Cross multiply
    29,105.14x = 43,621.20 × 12,445.60
  4. Step 4: Simplify right side
    29,105.14x = 542,892,006.72
  5. Step 5: Solve for x
    x = 542,892,006.72/29,105.14
  6. Step 6: Final answer
    x = 18,652.79

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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.