Home / 25,412.87-38,120.39-7,882.31

Finding the Fourth Proportional to 25,412.87, 38,120.39 and 7,882.31

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Solution

The fourth proportional to 25,412.87, 38,120.39 and 7,882.31 is: 11,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,412.87 : 38,120.39 = 7,882.31 : x
  2. Step 2: Convert to fraction form
    25,412.87/38,120.39 = 7,882.31/x
  3. Step 3: Cross multiply
    25,412.87x = 38,120.39 × 7,882.31
  4. Step 4: Simplify right side
    25,412.87x = 300,476,731.30
  5. Step 5: Solve for x
    x = 300,476,731.30/25,412.87
  6. Step 6: Final answer
    x = 11,823.80

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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.