Home / 18,021.36-26,982.72-13,625.76

Finding the Fourth Proportional to 18,021.36, 26,982.72 and 13,625.76

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Solution

The fourth proportional to 18,021.36, 26,982.72 and 13,625.76 is: 20,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.36 : 26,982.72 = 13,625.76 : x
  2. Step 2: Convert to fraction form
    18,021.36/26,982.72 = 13,625.76/x
  3. Step 3: Cross multiply
    18,021.36x = 26,982.72 × 13,625.76
  4. Step 4: Simplify right side
    18,021.36x = 367,660,066.87
  5. Step 5: Solve for x
    x = 367,660,066.87/18,021.36
  6. Step 6: Final answer
    x = 20,401.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.