Home / 18,821.24-25,971.86-10,321.96

Finding the Fourth Proportional to 18,821.24, 25,971.86 and 10,321.96

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Solution

The fourth proportional to 18,821.24, 25,971.86 and 10,321.96 is: 14,243.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,821.24 : 25,971.86 = 10,321.96 : x
  2. Step 2: Convert to fraction form
    18,821.24/25,971.86 = 10,321.96/x
  3. Step 3: Cross multiply
    18,821.24x = 25,971.86 × 10,321.96
  4. Step 4: Simplify right side
    18,821.24x = 268,080,500.05
  5. Step 5: Solve for x
    x = 268,080,500.05/18,821.24
  6. Step 6: Final answer
    x = 14,243.51

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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.