Home / 21,504.38-29,676.06-12,072.96

Finding the Fourth Proportional to 21,504.38, 29,676.06 and 12,072.96

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Solution

The fourth proportional to 21,504.38, 29,676.06 and 12,072.96 is: 16,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.38 : 29,676.06 = 12,072.96 : x
  2. Step 2: Convert to fraction form
    21,504.38/29,676.06 = 12,072.96/x
  3. Step 3: Cross multiply
    21,504.38x = 29,676.06 × 12,072.96
  4. Step 4: Simplify right side
    21,504.38x = 358,277,885.34
  5. Step 5: Solve for x
    x = 358,277,885.34/21,504.38
  6. Step 6: Final answer
    x = 16,660.70

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1.5x scale

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.