Home / 26,930.40-40,381.92-20,205.37

Finding the Fourth Proportional to 26,930.40, 40,381.92 and 20,205.37

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Solution

The fourth proportional to 26,930.40, 40,381.92 and 20,205.37 is: 30,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,930.40 : 40,381.92 = 20,205.37 : x
  2. Step 2: Convert to fraction form
    26,930.40/40,381.92 = 20,205.37/x
  3. Step 3: Cross multiply
    26,930.40x = 40,381.92 × 20,205.37
  4. Step 4: Simplify right side
    26,930.40x = 815,931,761.16
  5. Step 5: Solve for x
    x = 815,931,761.16/26,930.40
  6. Step 6: Final answer
    x = 30,297.80

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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.