Home / 18,709.27-25,821.27-13,040.35

Finding the Fourth Proportional to 18,709.27, 25,821.27 and 13,040.35

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Solution

The fourth proportional to 18,709.27, 25,821.27 and 13,040.35 is: 17,997.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.27 : 25,821.27 = 13,040.35 : x
  2. Step 2: Convert to fraction form
    18,709.27/25,821.27 = 13,040.35/x
  3. Step 3: Cross multiply
    18,709.27x = 25,821.27 × 13,040.35
  4. Step 4: Simplify right side
    18,709.27x = 336,718,398.24
  5. Step 5: Solve for x
    x = 336,718,398.24/18,709.27
  6. Step 6: Final answer
    x = 17,997.41

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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.