Home / 19,940.55-27,517.96-10,865.85

Finding the Fourth Proportional to 19,940.55, 27,517.96 and 10,865.85

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Solution

The fourth proportional to 19,940.55, 27,517.96 and 10,865.85 is: 14,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.55 : 27,517.96 = 10,865.85 : x
  2. Step 2: Convert to fraction form
    19,940.55/27,517.96 = 10,865.85/x
  3. Step 3: Cross multiply
    19,940.55x = 27,517.96 × 10,865.85
  4. Step 4: Simplify right side
    19,940.55x = 299,005,936.06
  5. Step 5: Solve for x
    x = 299,005,936.06/19,940.55
  6. Step 6: Final answer
    x = 14,994.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.