Home / 43,251.20-64,905.60-19,865.60

Finding the Fourth Proportional to 43,251.20, 64,905.60 and 19,865.60

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Solution

The fourth proportional to 43,251.20, 64,905.60 and 19,865.60 is: 29,811.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,251.20 : 64,905.60 = 19,865.60 : x
  2. Step 2: Convert to fraction form
    43,251.20/64,905.60 = 19,865.60/x
  3. Step 3: Cross multiply
    43,251.20x = 64,905.60 × 19,865.60
  4. Step 4: Simplify right side
    43,251.20x = 1,289,388,687.36
  5. Step 5: Solve for x
    x = 1,289,388,687.36/43,251.20
  6. Step 6: Final answer
    x = 29,811.63

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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.