Home / 25,388.91-35,039.99-15,323.04

Finding the Fourth Proportional to 25,388.91, 35,039.99 and 15,323.04

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Solution

The fourth proportional to 25,388.91, 35,039.99 and 15,323.04 is: 21,147.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.91 : 35,039.99 = 15,323.04 : x
  2. Step 2: Convert to fraction form
    25,388.91/35,039.99 = 15,323.04/x
  3. Step 3: Cross multiply
    25,388.91x = 35,039.99 × 15,323.04
  4. Step 4: Simplify right side
    25,388.91x = 536,919,206.68
  5. Step 5: Solve for x
    x = 536,919,206.68/25,388.91
  6. Step 6: Final answer
    x = 21,147.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.