Home / 38,865-58,297.82-11,847.72

Finding the Fourth Proportional to 38,865, 58,297.82 and 11,847.72

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Solution

The fourth proportional to 38,865, 58,297.82 and 11,847.72 is: 17,771.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,865 : 58,297.82 = 11,847.72 : x
  2. Step 2: Convert to fraction form
    38,865/58,297.82 = 11,847.72/x
  3. Step 3: Cross multiply
    38,865x = 58,297.82 × 11,847.72
  4. Step 4: Simplify right side
    38,865x = 690,696,247.97
  5. Step 5: Solve for x
    x = 690,696,247.97/38,865
  6. Step 6: Final answer
    x = 17,771.68

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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.