Home / 39,178.38-58,768.92-12,885.14

Finding the Fourth Proportional to 39,178.38, 58,768.92 and 12,885.14

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Solution

The fourth proportional to 39,178.38, 58,768.92 and 12,885.14 is: 19,328.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,178.38 : 58,768.92 = 12,885.14 : x
  2. Step 2: Convert to fraction form
    39,178.38/58,768.92 = 12,885.14/x
  3. Step 3: Cross multiply
    39,178.38x = 58,768.92 × 12,885.14
  4. Step 4: Simplify right side
    39,178.38x = 757,245,761.85
  5. Step 5: Solve for x
    x = 757,245,761.85/39,178.38
  6. Step 6: Final answer
    x = 19,328.15

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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.