Home / 21,016.62-31,492.08-17,883.81

Finding the Fourth Proportional to 21,016.62, 31,492.08 and 17,883.81

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Solution

The fourth proportional to 21,016.62, 31,492.08 and 17,883.81 is: 26,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.62 : 31,492.08 = 17,883.81 : x
  2. Step 2: Convert to fraction form
    21,016.62/31,492.08 = 17,883.81/x
  3. Step 3: Cross multiply
    21,016.62x = 31,492.08 × 17,883.81
  4. Step 4: Simplify right side
    21,016.62x = 563,198,375.22
  5. Step 5: Solve for x
    x = 563,198,375.22/21,016.62
  6. Step 6: Final answer
    x = 26,797.76

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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.