Home / 26,538.36-39,635.85-20,997.96

Finding the Fourth Proportional to 26,538.36, 39,635.85 and 20,997.96

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Solution

The fourth proportional to 26,538.36, 39,635.85 and 20,997.96 is: 31,361.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,538.36 : 39,635.85 = 20,997.96 : x
  2. Step 2: Convert to fraction form
    26,538.36/39,635.85 = 20,997.96/x
  3. Step 3: Cross multiply
    26,538.36x = 39,635.85 × 20,997.96
  4. Step 4: Simplify right side
    26,538.36x = 832,271,992.87
  5. Step 5: Solve for x
    x = 832,271,992.87/26,538.36
  6. Step 6: Final answer
    x = 31,361.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.