Home / 20,993.56-31,471.50-19,167.41

Finding the Fourth Proportional to 20,993.56, 31,471.50 and 19,167.41

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Solution

The fourth proportional to 20,993.56, 31,471.50 and 19,167.41 is: 28,733.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993.56 : 31,471.50 = 19,167.41 : x
  2. Step 2: Convert to fraction form
    20,993.56/31,471.50 = 19,167.41/x
  3. Step 3: Cross multiply
    20,993.56x = 31,471.50 × 19,167.41
  4. Step 4: Simplify right side
    20,993.56x = 603,227,143.82
  5. Step 5: Solve for x
    x = 603,227,143.82/20,993.56
  6. Step 6: Final answer
    x = 28,733.91

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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.