Home / 25,654.13-38,480.83-8,123.95

Finding the Fourth Proportional to 25,654.13, 38,480.83 and 8,123.95

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Solution

The fourth proportional to 25,654.13, 38,480.83 and 8,123.95 is: 12,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,654.13 : 38,480.83 = 8,123.95 : x
  2. Step 2: Convert to fraction form
    25,654.13/38,480.83 = 8,123.95/x
  3. Step 3: Cross multiply
    25,654.13x = 38,480.83 × 8,123.95
  4. Step 4: Simplify right side
    25,654.13x = 312,616,222.37
  5. Step 5: Solve for x
    x = 312,616,222.37/25,654.13
  6. Step 6: Final answer
    x = 12,185.81

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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.