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Finding the Fourth Proportional to 43,573.70, 65,360.52 and 12,408.94

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Solution

The fourth proportional to 43,573.70, 65,360.52 and 12,408.94 is: 18,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,573.70 : 65,360.52 = 12,408.94 : x
  2. Step 2: Convert to fraction form
    43,573.70/65,360.52 = 12,408.94/x
  3. Step 3: Cross multiply
    43,573.70x = 65,360.52 × 12,408.94
  4. Step 4: Simplify right side
    43,573.70x = 811,054,771.05
  5. Step 5: Solve for x
    x = 811,054,771.05/43,573.70
  6. Step 6: Final answer
    x = 18,613.40

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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.