Home / 21,974.21-32,961.28-8,826.57

Finding the Fourth Proportional to 21,974.21, 32,961.28 and 8,826.57

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Solution

The fourth proportional to 21,974.21, 32,961.28 and 8,826.57 is: 13,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.21 : 32,961.28 = 8,826.57 : x
  2. Step 2: Convert to fraction form
    21,974.21/32,961.28 = 8,826.57/x
  3. Step 3: Cross multiply
    21,974.21x = 32,961.28 × 8,826.57
  4. Step 4: Simplify right side
    21,974.21x = 290,935,045.21
  5. Step 5: Solve for x
    x = 290,935,045.21/21,974.21
  6. Step 6: Final answer
    x = 13,239.84

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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.