Home / 21,650.46-29,877.03-12,219.90

Finding the Fourth Proportional to 21,650.46, 29,877.03 and 12,219.90

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Solution

The fourth proportional to 21,650.46, 29,877.03 and 12,219.90 is: 16,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650.46 : 29,877.03 = 12,219.90 : x
  2. Step 2: Convert to fraction form
    21,650.46/29,877.03 = 12,219.90/x
  3. Step 3: Cross multiply
    21,650.46x = 29,877.03 × 12,219.90
  4. Step 4: Simplify right side
    21,650.46x = 365,094,318.90
  5. Step 5: Solve for x
    x = 365,094,318.90/21,650.46
  6. Step 6: Final answer
    x = 16,863.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.