Home / 37,669.38-51,985.20-20,905.62

Finding the Fourth Proportional to 37,669.38, 51,985.20 and 20,905.62

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Solution

The fourth proportional to 37,669.38, 51,985.20 and 20,905.62 is: 28,850.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,669.38 : 51,985.20 = 20,905.62 : x
  2. Step 2: Convert to fraction form
    37,669.38/51,985.20 = 20,905.62/x
  3. Step 3: Cross multiply
    37,669.38x = 51,985.20 × 20,905.62
  4. Step 4: Simplify right side
    37,669.38x = 1,086,782,836.82
  5. Step 5: Solve for x
    x = 1,086,782,836.82/37,669.38
  6. Step 6: Final answer
    x = 28,850.56

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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.