Home / 38,930.40-58,401.12-12,626.72

Finding the Fourth Proportional to 38,930.40, 58,401.12 and 12,626.72

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Solution

The fourth proportional to 38,930.40, 58,401.12 and 12,626.72 is: 18,941.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,930.40 : 58,401.12 = 12,626.72 : x
  2. Step 2: Convert to fraction form
    38,930.40/58,401.12 = 12,626.72/x
  3. Step 3: Cross multiply
    38,930.40x = 58,401.12 × 12,626.72
  4. Step 4: Simplify right side
    38,930.40x = 737,414,589.93
  5. Step 5: Solve for x
    x = 737,414,589.93/38,930.40
  6. Step 6: Final answer
    x = 18,941.87

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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.