Home / 25,695.13-38,534.49-8,160.86

Finding the Fourth Proportional to 25,695.13, 38,534.49 and 8,160.86

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Solution

The fourth proportional to 25,695.13, 38,534.49 and 8,160.86 is: 12,238.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,695.13 : 38,534.49 = 8,160.86 : x
  2. Step 2: Convert to fraction form
    25,695.13/38,534.49 = 8,160.86/x
  3. Step 3: Cross multiply
    25,695.13x = 38,534.49 × 8,160.86
  4. Step 4: Simplify right side
    25,695.13x = 314,474,385.39
  5. Step 5: Solve for x
    x = 314,474,385.39/25,695.13
  6. Step 6: Final answer
    x = 12,238.68

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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.