Home / 37,200.78-51,337.44-20,433.78

Finding the Fourth Proportional to 37,200.78, 51,337.44 and 20,433.78

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Solution

The fourth proportional to 37,200.78, 51,337.44 and 20,433.78 is: 28,198.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,200.78 : 51,337.44 = 20,433.78 : x
  2. Step 2: Convert to fraction form
    37,200.78/51,337.44 = 20,433.78/x
  3. Step 3: Cross multiply
    37,200.78x = 51,337.44 × 20,433.78
  4. Step 4: Simplify right side
    37,200.78x = 1,049,017,954.72
  5. Step 5: Solve for x
    x = 1,049,017,954.72/37,200.78
  6. Step 6: Final answer
    x = 28,198.82

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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.