Home / 29,105.11-43,621.13-12,445.55

Finding the Fourth Proportional to 29,105.11, 43,621.13 and 12,445.55

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Solution

The fourth proportional to 29,105.11, 43,621.13 and 12,445.55 is: 18,652.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,105.11 : 43,621.13 = 12,445.55 : x
  2. Step 2: Convert to fraction form
    29,105.11/43,621.13 = 12,445.55/x
  3. Step 3: Cross multiply
    29,105.11x = 43,621.13 × 12,445.55
  4. Step 4: Simplify right side
    29,105.11x = 542,888,736.37
  5. Step 5: Solve for x
    x = 542,888,736.37/29,105.11
  6. Step 6: Final answer
    x = 18,652.69

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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.