Home / 26,930.39-40,405.30-9,402.80

Finding the Fourth Proportional to 26,930.39, 40,405.30 and 9,402.80

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Solution

The fourth proportional to 26,930.39, 40,405.30 and 9,402.80 is: 14,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,930.39 : 40,405.30 = 9,402.80 : x
  2. Step 2: Convert to fraction form
    26,930.39/40,405.30 = 9,402.80/x
  3. Step 3: Cross multiply
    26,930.39x = 40,405.30 × 9,402.80
  4. Step 4: Simplify right side
    26,930.39x = 379,922,729.31
  5. Step 5: Solve for x
    x = 379,922,729.31/26,930.39
  6. Step 6: Final answer
    x = 14,107.59

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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.