Home / 43,273.60-64,861.80-18,309.40

Finding the Fourth Proportional to 43,273.60, 64,861.80 and 18,309.40

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Solution

The fourth proportional to 43,273.60, 64,861.80 and 18,309.40 is: 27,443.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,273.60 : 64,861.80 = 18,309.40 : x
  2. Step 2: Convert to fraction form
    43,273.60/64,861.80 = 18,309.40/x
  3. Step 3: Cross multiply
    43,273.60x = 64,861.80 × 18,309.40
  4. Step 4: Simplify right side
    43,273.60x = 1,187,580,640.92
  5. Step 5: Solve for x
    x = 1,187,580,640.92/43,273.60
  6. Step 6: Final answer
    x = 27,443.54

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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.