Home / 21,037.38-31,546.89-11,174.28

Finding the Fourth Proportional to 21,037.38, 31,546.89 and 11,174.28

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Solution

The fourth proportional to 21,037.38, 31,546.89 and 11,174.28 is: 16,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,037.38 : 31,546.89 = 11,174.28 : x
  2. Step 2: Convert to fraction form
    21,037.38/31,546.89 = 11,174.28/x
  3. Step 3: Cross multiply
    21,037.38x = 31,546.89 × 11,174.28
  4. Step 4: Simplify right side
    21,037.38x = 352,513,781.99
  5. Step 5: Solve for x
    x = 352,513,781.99/21,037.38
  6. Step 6: Final answer
    x = 16,756.54

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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.