Home / 26,131.68-39,168.35-11,318.40

Finding the Fourth Proportional to 26,131.68, 39,168.35 and 11,318.40

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Solution

The fourth proportional to 26,131.68, 39,168.35 and 11,318.40 is: 16,964.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,131.68 : 39,168.35 = 11,318.40 : x
  2. Step 2: Convert to fraction form
    26,131.68/39,168.35 = 11,318.40/x
  3. Step 3: Cross multiply
    26,131.68x = 39,168.35 × 11,318.40
  4. Step 4: Simplify right side
    26,131.68x = 443,322,996.05
  5. Step 5: Solve for x
    x = 443,322,996.05/26,131.68
  6. Step 6: Final answer
    x = 16,964.96

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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.