Home / 26,396.32-39,620.40-19,838.56

Finding the Fourth Proportional to 26,396.32, 39,620.40 and 19,838.56

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Solution

The fourth proportional to 26,396.32, 39,620.40 and 19,838.56 is: 29,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,396.32 : 39,620.40 = 19,838.56 : x
  2. Step 2: Convert to fraction form
    26,396.32/39,620.40 = 19,838.56/x
  3. Step 3: Cross multiply
    26,396.32x = 39,620.40 × 19,838.56
  4. Step 4: Simplify right side
    26,396.32x = 786,011,682.62
  5. Step 5: Solve for x
    x = 786,011,682.62/26,396.32
  6. Step 6: Final answer
    x = 29,777.32

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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.