Home / 43,591.50-65,387.86-12,426.75

Finding the Fourth Proportional to 43,591.50, 65,387.86 and 12,426.75

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Solution

The fourth proportional to 43,591.50, 65,387.86 and 12,426.75 is: 18,640.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,591.50 : 65,387.86 = 12,426.75 : x
  2. Step 2: Convert to fraction form
    43,591.50/65,387.86 = 12,426.75/x
  3. Step 3: Cross multiply
    43,591.50x = 65,387.86 × 12,426.75
  4. Step 4: Simplify right side
    43,591.50x = 812,558,558.19
  5. Step 5: Solve for x
    x = 812,558,558.19/43,591.50
  6. Step 6: Final answer
    x = 18,640.30

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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.