Home / 26,682.84-39,965.76-21,142.44

Finding the Fourth Proportional to 26,682.84, 39,965.76 and 21,142.44

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Solution

The fourth proportional to 26,682.84, 39,965.76 and 21,142.44 is: 31,667.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,682.84 : 39,965.76 = 21,142.44 : x
  2. Step 2: Convert to fraction form
    26,682.84/39,965.76 = 21,142.44/x
  3. Step 3: Cross multiply
    26,682.84x = 39,965.76 × 21,142.44
  4. Step 4: Simplify right side
    26,682.84x = 844,973,682.85
  5. Step 5: Solve for x
    x = 844,973,682.85/26,682.84
  6. Step 6: Final answer
    x = 31,667.31

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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.