Home / 20,943.54-31,415.22-8,463.41

Finding the Fourth Proportional to 20,943.54, 31,415.22 and 8,463.41

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Solution

The fourth proportional to 20,943.54, 31,415.22 and 8,463.41 is: 12,695.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.54 : 31,415.22 = 8,463.41 : x
  2. Step 2: Convert to fraction form
    20,943.54/31,415.22 = 8,463.41/x
  3. Step 3: Cross multiply
    20,943.54x = 31,415.22 × 8,463.41
  4. Step 4: Simplify right side
    20,943.54x = 265,879,912.38
  5. Step 5: Solve for x
    x = 265,879,912.38/20,943.54
  6. Step 6: Final answer
    x = 12,695.08

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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.