Home / 37,107.78-51,211.17-20,969.43

Finding the Fourth Proportional to 37,107.78, 51,211.17 and 20,969.43

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Solution

The fourth proportional to 37,107.78, 51,211.17 and 20,969.43 is: 28,939.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,107.78 : 51,211.17 = 20,969.43 : x
  2. Step 2: Convert to fraction form
    37,107.78/51,211.17 = 20,969.43/x
  3. Step 3: Cross multiply
    37,107.78x = 51,211.17 × 20,969.43
  4. Step 4: Simplify right side
    37,107.78x = 1,073,869,044.53
  5. Step 5: Solve for x
    x = 1,073,869,044.53/37,107.78
  6. Step 6: Final answer
    x = 28,939.19

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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.