Home / 20,982.38-31,436.62-19,733.74

Finding the Fourth Proportional to 20,982.38, 31,436.62 and 19,733.74

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Solution

The fourth proportional to 20,982.38, 31,436.62 and 19,733.74 is: 29,565.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.38 : 31,436.62 = 19,733.74 : x
  2. Step 2: Convert to fraction form
    20,982.38/31,436.62 = 19,733.74/x
  3. Step 3: Cross multiply
    20,982.38x = 31,436.62 × 19,733.74
  4. Step 4: Simplify right side
    20,982.38x = 620,362,085.56
  5. Step 5: Solve for x
    x = 620,362,085.56/20,982.38
  6. Step 6: Final answer
    x = 29,565.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.