Home / 36,972.38-51,021.90-20,205.38

Finding the Fourth Proportional to 36,972.38, 51,021.90 and 20,205.38

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Solution

The fourth proportional to 36,972.38, 51,021.90 and 20,205.38 is: 27,883.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,972.38 : 51,021.90 = 20,205.38 : x
  2. Step 2: Convert to fraction form
    36,972.38/51,021.90 = 20,205.38/x
  3. Step 3: Cross multiply
    36,972.38x = 51,021.90 × 20,205.38
  4. Step 4: Simplify right side
    36,972.38x = 1,030,916,877.82
  5. Step 5: Solve for x
    x = 1,030,916,877.82/36,972.38
  6. Step 6: Final answer
    x = 27,883.43

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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.