Home / 40,828.20-61,193.70-21,096.60

Finding the Fourth Proportional to 40,828.20, 61,193.70 and 21,096.60

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Solution

The fourth proportional to 40,828.20, 61,193.70 and 21,096.60 is: 31,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,828.20 : 61,193.70 = 21,096.60 : x
  2. Step 2: Convert to fraction form
    40,828.20/61,193.70 = 21,096.60/x
  3. Step 3: Cross multiply
    40,828.20x = 61,193.70 × 21,096.60
  4. Step 4: Simplify right side
    40,828.20x = 1,290,979,011.42
  5. Step 5: Solve for x
    x = 1,290,979,011.42/40,828.20
  6. Step 6: Final answer
    x = 31,619.79

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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.