Home / 38,426.46-57,638.58-20,930.46

Finding the Fourth Proportional to 38,426.46, 57,638.58 and 20,930.46

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Solution

The fourth proportional to 38,426.46, 57,638.58 and 20,930.46 is: 31,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,426.46 : 57,638.58 = 20,930.46 : x
  2. Step 2: Convert to fraction form
    38,426.46/57,638.58 = 20,930.46/x
  3. Step 3: Cross multiply
    38,426.46x = 57,638.58 × 20,930.46
  4. Step 4: Simplify right side
    38,426.46x = 1,206,401,993.15
  5. Step 5: Solve for x
    x = 1,206,401,993.15/38,426.46
  6. Step 6: Final answer
    x = 31,395.09

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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.