Home / 21,344.76-31,967.34-16,872.41

Finding the Fourth Proportional to 21,344.76, 31,967.34 and 16,872.41

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Solution

The fourth proportional to 21,344.76, 31,967.34 and 16,872.41 is: 25,269.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.76 : 31,967.34 = 16,872.41 : x
  2. Step 2: Convert to fraction form
    21,344.76/31,967.34 = 16,872.41/x
  3. Step 3: Cross multiply
    21,344.76x = 31,967.34 × 16,872.41
  4. Step 4: Simplify right side
    21,344.76x = 539,365,858.40
  5. Step 5: Solve for x
    x = 539,365,858.40/21,344.76
  6. Step 6: Final answer
    x = 25,269.24

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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.