Home / 25,366.80-38,046.60-7,838.40

Finding the Fourth Proportional to 25,366.80, 38,046.60 and 7,838.40

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Solution

The fourth proportional to 25,366.80, 38,046.60 and 7,838.40 is: 11,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,366.80 : 38,046.60 = 7,838.40 : x
  2. Step 2: Convert to fraction form
    25,366.80/38,046.60 = 7,838.40/x
  3. Step 3: Cross multiply
    25,366.80x = 38,046.60 × 7,838.40
  4. Step 4: Simplify right side
    25,366.80x = 298,224,469.44
  5. Step 5: Solve for x
    x = 298,224,469.44/25,366.80
  6. Step 6: Final answer
    x = 11,756.49

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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.