Home / 37,418.60-51,638.42-20,651.56

Finding the Fourth Proportional to 37,418.60, 51,638.42 and 20,651.56

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Solution

The fourth proportional to 37,418.60, 51,638.42 and 20,651.56 is: 28,499.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,418.60 : 51,638.42 = 20,651.56 : x
  2. Step 2: Convert to fraction form
    37,418.60/51,638.42 = 20,651.56/x
  3. Step 3: Cross multiply
    37,418.60x = 51,638.42 × 20,651.56
  4. Step 4: Simplify right side
    37,418.60x = 1,066,413,928.94
  5. Step 5: Solve for x
    x = 1,066,413,928.94/37,418.60
  6. Step 6: Final answer
    x = 28,499.57

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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.