Home / 21,196.38-31,795.17-5,614

Finding the Fourth Proportional to 21,196.38, 31,795.17 and 5,614

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Solution

The fourth proportional to 21,196.38, 31,795.17 and 5,614 is: 8,421.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.38 : 31,795.17 = 5,614 : x
  2. Step 2: Convert to fraction form
    21,196.38/31,795.17 = 5,614/x
  3. Step 3: Cross multiply
    21,196.38x = 31,795.17 × 5,614
  4. Step 4: Simplify right side
    21,196.38x = 178,498,084.38
  5. Step 5: Solve for x
    x = 178,498,084.38/21,196.38
  6. Step 6: Final answer
    x = 8,421.16

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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.