Home / 26,425.82-39,619.90-12,378.14

Finding the Fourth Proportional to 26,425.82, 39,619.90 and 12,378.14

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Solution

The fourth proportional to 26,425.82, 39,619.90 and 12,378.14 is: 18,558.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,425.82 : 39,619.90 = 12,378.14 : x
  2. Step 2: Convert to fraction form
    26,425.82/39,619.90 = 12,378.14/x
  3. Step 3: Cross multiply
    26,425.82x = 39,619.90 × 12,378.14
  4. Step 4: Simplify right side
    26,425.82x = 490,420,668.99
  5. Step 5: Solve for x
    x = 490,420,668.99/26,425.82
  6. Step 6: Final answer
    x = 18,558.39

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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.