Home / 25,687.42-38,504.75-12,340.39

Finding the Fourth Proportional to 25,687.42, 38,504.75 and 12,340.39

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Solution

The fourth proportional to 25,687.42, 38,504.75 and 12,340.39 is: 18,497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,687.42 : 38,504.75 = 12,340.39 : x
  2. Step 2: Convert to fraction form
    25,687.42/38,504.75 = 12,340.39/x
  3. Step 3: Cross multiply
    25,687.42x = 38,504.75 × 12,340.39
  4. Step 4: Simplify right side
    25,687.42x = 475,163,631.85
  5. Step 5: Solve for x
    x = 475,163,631.85/25,687.42
  6. Step 6: Final answer
    x = 18,497.91

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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.