Home / 37,660.38-51,971.29-20,664.72

Finding the Fourth Proportional to 37,660.38, 51,971.29 and 20,664.72

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Solution

The fourth proportional to 37,660.38, 51,971.29 and 20,664.72 is: 28,517.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,660.38 : 51,971.29 = 20,664.72 : x
  2. Step 2: Convert to fraction form
    37,660.38/51,971.29 = 20,664.72/x
  3. Step 3: Cross multiply
    37,660.38x = 51,971.29 × 20,664.72
  4. Step 4: Simplify right side
    37,660.38x = 1,073,972,104.23
  5. Step 5: Solve for x
    x = 1,073,972,104.23/37,660.38
  6. Step 6: Final answer
    x = 28,517.29

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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.