Home / 25,715.88-38,573.40-8,185.48

Finding the Fourth Proportional to 25,715.88, 38,573.40 and 8,185.48

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Solution

The fourth proportional to 25,715.88, 38,573.40 and 8,185.48 is: 12,278.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,715.88 : 38,573.40 = 8,185.48 : x
  2. Step 2: Convert to fraction form
    25,715.88/38,573.40 = 8,185.48/x
  3. Step 3: Cross multiply
    25,715.88x = 38,573.40 × 8,185.48
  4. Step 4: Simplify right side
    25,715.88x = 315,741,794.23
  5. Step 5: Solve for x
    x = 315,741,794.23/25,715.88
  6. Step 6: Final answer
    x = 12,278.09

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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.