Home / 21,179.96-31,769.39-5,597.72

Finding the Fourth Proportional to 21,179.96, 31,769.39 and 5,597.72

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Solution

The fourth proportional to 21,179.96, 31,769.39 and 5,597.72 is: 8,396.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.96 : 31,769.39 = 5,597.72 : x
  2. Step 2: Convert to fraction form
    21,179.96/31,769.39 = 5,597.72/x
  3. Step 3: Cross multiply
    21,179.96x = 31,769.39 × 5,597.72
  4. Step 4: Simplify right side
    21,179.96x = 177,835,990.94
  5. Step 5: Solve for x
    x = 177,835,990.94/21,179.96
  6. Step 6: Final answer
    x = 8,396.43

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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.