Home / 43,800.35-65,711.43-12,635.60

Finding the Fourth Proportional to 43,800.35, 65,711.43 and 12,635.60

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Solution

The fourth proportional to 43,800.35, 65,711.43 and 12,635.60 is: 18,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,800.35 : 65,711.43 = 12,635.60 : x
  2. Step 2: Convert to fraction form
    43,800.35/65,711.43 = 12,635.60/x
  3. Step 3: Cross multiply
    43,800.35x = 65,711.43 × 12,635.60
  4. Step 4: Simplify right side
    43,800.35x = 830,303,016.35
  5. Step 5: Solve for x
    x = 830,303,016.35/43,800.35
  6. Step 6: Final answer
    x = 18,956.54

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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.