Home / 40,668.20-60,953.70-20,936.60

Finding the Fourth Proportional to 40,668.20, 60,953.70 and 20,936.60

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Solution

The fourth proportional to 40,668.20, 60,953.70 and 20,936.60 is: 31,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,668.20 : 60,953.70 = 20,936.60 : x
  2. Step 2: Convert to fraction form
    40,668.20/60,953.70 = 20,936.60/x
  3. Step 3: Cross multiply
    40,668.20x = 60,953.70 × 20,936.60
  4. Step 4: Simplify right side
    40,668.20x = 1,276,163,235.42
  5. Step 5: Solve for x
    x = 1,276,163,235.42/40,668.20
  6. Step 6: Final answer
    x = 31,379.88

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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.