Home / 21,260.46-31,884.21-5,676.06

Finding the Fourth Proportional to 21,260.46, 31,884.21 and 5,676.06

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Solution

The fourth proportional to 21,260.46, 31,884.21 and 5,676.06 is: 8,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.46 : 31,884.21 = 5,676.06 : x
  2. Step 2: Convert to fraction form
    21,260.46/31,884.21 = 5,676.06/x
  3. Step 3: Cross multiply
    21,260.46x = 31,884.21 × 5,676.06
  4. Step 4: Simplify right side
    21,260.46x = 180,976,689.01
  5. Step 5: Solve for x
    x = 180,976,689.01/21,260.46
  6. Step 6: Final answer
    x = 8,512.36

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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.