Home / 20,943.18-31,377.84-11,060.64

Finding the Fourth Proportional to 20,943.18, 31,377.84 and 11,060.64

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Solution

The fourth proportional to 20,943.18, 31,377.84 and 11,060.64 is: 16,571.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.18 : 31,377.84 = 11,060.64 : x
  2. Step 2: Convert to fraction form
    20,943.18/31,377.84 = 11,060.64/x
  3. Step 3: Cross multiply
    20,943.18x = 31,377.84 × 11,060.64
  4. Step 4: Simplify right side
    20,943.18x = 347,058,992.22
  5. Step 5: Solve for x
    x = 347,058,992.22/20,943.18
  6. Step 6: Final answer
    x = 16,571.46

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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.