Home / 25,653.66-38,487.33-8,123.82

Finding the Fourth Proportional to 25,653.66, 38,487.33 and 8,123.82

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Solution

The fourth proportional to 25,653.66, 38,487.33 and 8,123.82 is: 12,187.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.66 : 38,487.33 = 8,123.82 : x
  2. Step 2: Convert to fraction form
    25,653.66/38,487.33 = 8,123.82/x
  3. Step 3: Cross multiply
    25,653.66x = 38,487.33 × 8,123.82
  4. Step 4: Simplify right side
    25,653.66x = 312,664,141.20
  5. Step 5: Solve for x
    x = 312,664,141.20/25,653.66
  6. Step 6: Final answer
    x = 12,187.90

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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.