Home / 18,388.32-25,410.44-15,029.94

Finding the Fourth Proportional to 18,388.32, 25,410.44 and 15,029.94

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Solution

The fourth proportional to 18,388.32, 25,410.44 and 15,029.94 is: 20,769.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.32 : 25,410.44 = 15,029.94 : x
  2. Step 2: Convert to fraction form
    18,388.32/25,410.44 = 15,029.94/x
  3. Step 3: Cross multiply
    18,388.32x = 25,410.44 × 15,029.94
  4. Step 4: Simplify right side
    18,388.32x = 381,917,388.57
  5. Step 5: Solve for x
    x = 381,917,388.57/18,388.32
  6. Step 6: Final answer
    x = 20,769.56

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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.