Home / 25,623.14-38,438.82-8,091.63

Finding the Fourth Proportional to 25,623.14, 38,438.82 and 8,091.63

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Solution

The fourth proportional to 25,623.14, 38,438.82 and 8,091.63 is: 12,138.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,623.14 : 38,438.82 = 8,091.63 : x
  2. Step 2: Convert to fraction form
    25,623.14/38,438.82 = 8,091.63/x
  3. Step 3: Cross multiply
    25,623.14x = 38,438.82 × 8,091.63
  4. Step 4: Simplify right side
    25,623.14x = 311,032,709.08
  5. Step 5: Solve for x
    x = 311,032,709.08/25,623.14
  6. Step 6: Final answer
    x = 12,138.75

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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.