Home / 37,908.09-52,310.97-20,912.40

Finding the Fourth Proportional to 37,908.09, 52,310.97 and 20,912.40

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Solution

The fourth proportional to 37,908.09, 52,310.97 and 20,912.40 is: 28,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,908.09 : 52,310.97 = 20,912.40 : x
  2. Step 2: Convert to fraction form
    37,908.09/52,310.97 = 20,912.40/x
  3. Step 3: Cross multiply
    37,908.09x = 52,310.97 × 20,912.40
  4. Step 4: Simplify right side
    37,908.09x = 1,093,947,929.03
  5. Step 5: Solve for x
    x = 1,093,947,929.03/37,908.09
  6. Step 6: Final answer
    x = 28,857.90

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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.