Home / 25,121.44-37,678.57-8,479.28

Finding the Fourth Proportional to 25,121.44, 37,678.57 and 8,479.28

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Solution

The fourth proportional to 25,121.44, 37,678.57 and 8,479.28 is: 12,717.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,121.44 : 37,678.57 = 8,479.28 : x
  2. Step 2: Convert to fraction form
    25,121.44/37,678.57 = 8,479.28/x
  3. Step 3: Cross multiply
    25,121.44x = 37,678.57 × 8,479.28
  4. Step 4: Simplify right side
    25,121.44x = 319,487,218.03
  5. Step 5: Solve for x
    x = 319,487,218.03/25,121.44
  6. Step 6: Final answer
    x = 12,717.71

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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.