Home / 18,221.21-25,161.11-14,013.97

Finding the Fourth Proportional to 18,221.21, 25,161.11 and 14,013.97

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Solution

The fourth proportional to 18,221.21, 25,161.11 and 14,013.97 is: 19,351.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.21 : 25,161.11 = 14,013.97 : x
  2. Step 2: Convert to fraction form
    18,221.21/25,161.11 = 14,013.97/x
  3. Step 3: Cross multiply
    18,221.21x = 25,161.11 × 14,013.97
  4. Step 4: Simplify right side
    18,221.21x = 352,607,040.71
  5. Step 5: Solve for x
    x = 352,607,040.71/18,221.21
  6. Step 6: Final answer
    x = 19,351.46

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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.