Home / 37,578.24-51,861.12-20,812.80

Finding the Fourth Proportional to 37,578.24, 51,861.12 and 20,812.80

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Solution

The fourth proportional to 37,578.24, 51,861.12 and 20,812.80 is: 28,723.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,578.24 : 51,861.12 = 20,812.80 : x
  2. Step 2: Convert to fraction form
    37,578.24/51,861.12 = 20,812.80/x
  3. Step 3: Cross multiply
    37,578.24x = 51,861.12 × 20,812.80
  4. Step 4: Simplify right side
    37,578.24x = 1,079,375,118.34
  5. Step 5: Solve for x
    x = 1,079,375,118.34/37,578.24
  6. Step 6: Final answer
    x = 28,723.41

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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.