Home / 43,821.64-65,734.58-12,231.64

Finding the Fourth Proportional to 43,821.64, 65,734.58 and 12,231.64

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Solution

The fourth proportional to 43,821.64, 65,734.58 and 12,231.64 is: 18,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,821.64 : 65,734.58 = 12,231.64 : x
  2. Step 2: Convert to fraction form
    43,821.64/65,734.58 = 12,231.64/x
  3. Step 3: Cross multiply
    43,821.64x = 65,734.58 × 12,231.64
  4. Step 4: Simplify right side
    43,821.64x = 804,041,718.11
  5. Step 5: Solve for x
    x = 804,041,718.11/43,821.64
  6. Step 6: Final answer
    x = 18,348.05

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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.