Home / 21,826.18-32,744.40-8,679.88

Finding the Fourth Proportional to 21,826.18, 32,744.40 and 8,679.88

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Solution

The fourth proportional to 21,826.18, 32,744.40 and 8,679.88 is: 13,021.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,826.18 : 32,744.40 = 8,679.88 : x
  2. Step 2: Convert to fraction form
    21,826.18/32,744.40 = 8,679.88/x
  3. Step 3: Cross multiply
    21,826.18x = 32,744.40 × 8,679.88
  4. Step 4: Simplify right side
    21,826.18x = 284,217,462.67
  5. Step 5: Solve for x
    x = 284,217,462.67/21,826.18
  6. Step 6: Final answer
    x = 13,021.86

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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.