Home / 21,827.28-32,743.02-8,676.70

Finding the Fourth Proportional to 21,827.28, 32,743.02 and 8,676.70

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Solution

The fourth proportional to 21,827.28, 32,743.02 and 8,676.70 is: 13,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.28 : 32,743.02 = 8,676.70 : x
  2. Step 2: Convert to fraction form
    21,827.28/32,743.02 = 8,676.70/x
  3. Step 3: Cross multiply
    21,827.28x = 32,743.02 × 8,676.70
  4. Step 4: Simplify right side
    21,827.28x = 284,101,361.63
  5. Step 5: Solve for x
    x = 284,101,361.63/21,827.28
  6. Step 6: Final answer
    x = 13,015.88

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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.