Home / 43,861.41-65,771.60-18,900.45

Finding the Fourth Proportional to 43,861.41, 65,771.60 and 18,900.45

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Solution

The fourth proportional to 43,861.41, 65,771.60 and 18,900.45 is: 28,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,861.41 : 65,771.60 = 18,900.45 : x
  2. Step 2: Convert to fraction form
    43,861.41/65,771.60 = 18,900.45/x
  3. Step 3: Cross multiply
    43,861.41x = 65,771.60 × 18,900.45
  4. Step 4: Simplify right side
    43,861.41x = 1,243,112,742.72
  5. Step 5: Solve for x
    x = 1,243,112,742.72/43,861.41
  6. Step 6: Final answer
    x = 28,341.83

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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.