Home / 37,142.97-51,256.67-20,375.61

Finding the Fourth Proportional to 37,142.97, 51,256.67 and 20,375.61

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Solution

The fourth proportional to 37,142.97, 51,256.67 and 20,375.61 is: 28,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,142.97 : 51,256.67 = 20,375.61 : x
  2. Step 2: Convert to fraction form
    37,142.97/51,256.67 = 20,375.61/x
  3. Step 3: Cross multiply
    37,142.97x = 51,256.67 × 20,375.61
  4. Step 4: Simplify right side
    37,142.97x = 1,044,385,815.94
  5. Step 5: Solve for x
    x = 1,044,385,815.94/37,142.97
  6. Step 6: Final answer
    x = 28,117.99

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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.