Home / 25,400.98-38,103.30-8,760.78

Finding the Fourth Proportional to 25,400.98, 38,103.30 and 8,760.78

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Solution

The fourth proportional to 25,400.98, 38,103.30 and 8,760.78 is: 13,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,400.98 : 38,103.30 = 8,760.78 : x
  2. Step 2: Convert to fraction form
    25,400.98/38,103.30 = 8,760.78/x
  3. Step 3: Cross multiply
    25,400.98x = 38,103.30 × 8,760.78
  4. Step 4: Simplify right side
    25,400.98x = 333,814,628.57
  5. Step 5: Solve for x
    x = 333,814,628.57/25,400.98
  6. Step 6: Final answer
    x = 13,141.80

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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.