Home / 18,131.24-25,019.30-10,578.28

Finding the Fourth Proportional to 18,131.24, 25,019.30 and 10,578.28

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Solution

The fourth proportional to 18,131.24, 25,019.30 and 10,578.28 is: 14,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.24 : 25,019.30 = 10,578.28 : x
  2. Step 2: Convert to fraction form
    18,131.24/25,019.30 = 10,578.28/x
  3. Step 3: Cross multiply
    18,131.24x = 25,019.30 × 10,578.28
  4. Step 4: Simplify right side
    18,131.24x = 264,661,160.80
  5. Step 5: Solve for x
    x = 264,661,160.80/18,131.24
  6. Step 6: Final answer
    x = 14,596.97

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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.