Home / 26,231.09-36,213.57-20,087.15

Finding the Fourth Proportional to 26,231.09, 36,213.57 and 20,087.15

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Solution

The fourth proportional to 26,231.09, 36,213.57 and 20,087.15 is: 27,731.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,231.09 : 36,213.57 = 20,087.15 : x
  2. Step 2: Convert to fraction form
    26,231.09/36,213.57 = 20,087.15/x
  3. Step 3: Cross multiply
    26,231.09x = 36,213.57 × 20,087.15
  4. Step 4: Simplify right side
    26,231.09x = 727,427,231.56
  5. Step 5: Solve for x
    x = 727,427,231.56/26,231.09
  6. Step 6: Final answer
    x = 27,731.50

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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.