Home / 43,380.54-65,065.05-12,218.22

Finding the Fourth Proportional to 43,380.54, 65,065.05 and 12,218.22

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Solution

The fourth proportional to 43,380.54, 65,065.05 and 12,218.22 is: 18,325.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,380.54 : 65,065.05 = 12,218.22 : x
  2. Step 2: Convert to fraction form
    43,380.54/65,065.05 = 12,218.22/x
  3. Step 3: Cross multiply
    43,380.54x = 65,065.05 × 12,218.22
  4. Step 4: Simplify right side
    43,380.54x = 794,979,095.21
  5. Step 5: Solve for x
    x = 794,979,095.21/43,380.54
  6. Step 6: Final answer
    x = 18,325.71

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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.