Home / 25,272.05-37,860.69-21,138.62

Finding the Fourth Proportional to 25,272.05, 37,860.69 and 21,138.62

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Solution

The fourth proportional to 25,272.05, 37,860.69 and 21,138.62 is: 31,668.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,272.05 : 37,860.69 = 21,138.62 : x
  2. Step 2: Convert to fraction form
    25,272.05/37,860.69 = 21,138.62/x
  3. Step 3: Cross multiply
    25,272.05x = 37,860.69 × 21,138.62
  4. Step 4: Simplify right side
    25,272.05x = 800,322,738.85
  5. Step 5: Solve for x
    x = 800,322,738.85/25,272.05
  6. Step 6: Final answer
    x = 31,668.30

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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.