Home / 43,840.50-65,770.49-20,454.18

Finding the Fourth Proportional to 43,840.50, 65,770.49 and 20,454.18

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Solution

The fourth proportional to 43,840.50, 65,770.49 and 20,454.18 is: 30,685.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,840.50 : 65,770.49 = 20,454.18 : x
  2. Step 2: Convert to fraction form
    43,840.50/65,770.49 = 20,454.18/x
  3. Step 3: Cross multiply
    43,840.50x = 65,770.49 × 20,454.18
  4. Step 4: Simplify right side
    43,840.50x = 1,345,281,441.15
  5. Step 5: Solve for x
    x = 1,345,281,441.15/43,840.50
  6. Step 6: Final answer
    x = 30,685.81

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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.