Home / 38,102.97-57,157.20-13,142.67

Finding the Fourth Proportional to 38,102.97, 57,157.20 and 13,142.67

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Solution

The fourth proportional to 38,102.97, 57,157.20 and 13,142.67 is: 19,714.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,102.97 : 57,157.20 = 13,142.67 : x
  2. Step 2: Convert to fraction form
    38,102.97/57,157.20 = 13,142.67/x
  3. Step 3: Cross multiply
    38,102.97x = 57,157.20 × 13,142.67
  4. Step 4: Simplify right side
    38,102.97x = 751,198,217.72
  5. Step 5: Solve for x
    x = 751,198,217.72/38,102.97
  6. Step 6: Final answer
    x = 19,714.95

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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.