Home / 20,743.21-31,114.74-16,563.61

Finding the Fourth Proportional to 20,743.21, 31,114.74 and 16,563.61

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Solution

The fourth proportional to 20,743.21, 31,114.74 and 16,563.61 is: 24,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,743.21 : 31,114.74 = 16,563.61 : x
  2. Step 2: Convert to fraction form
    20,743.21/31,114.74 = 16,563.61/x
  3. Step 3: Cross multiply
    20,743.21x = 31,114.74 × 16,563.61
  4. Step 4: Simplify right side
    20,743.21x = 515,372,418.61
  5. Step 5: Solve for x
    x = 515,372,418.61/20,743.21
  6. Step 6: Final answer
    x = 24,845.36

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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.