Home / 16,921.38-25,354.33-11,982.15

Finding the Fourth Proportional to 16,921.38, 25,354.33 and 11,982.15

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Solution

The fourth proportional to 16,921.38, 25,354.33 and 11,982.15 is: 17,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.38 : 25,354.33 = 11,982.15 : x
  2. Step 2: Convert to fraction form
    16,921.38/25,354.33 = 11,982.15/x
  3. Step 3: Cross multiply
    16,921.38x = 25,354.33 × 11,982.15
  4. Step 4: Simplify right side
    16,921.38x = 303,799,355.25
  5. Step 5: Solve for x
    x = 303,799,355.25/16,921.38
  6. Step 6: Final answer
    x = 17,953.58

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1.5x scale

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.