Home / 20,160.88-30,176.60-10,777.44

Finding the Fourth Proportional to 20,160.88, 30,176.60 and 10,777.44

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Solution

The fourth proportional to 20,160.88, 30,176.60 and 10,777.44 is: 16,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.88 : 30,176.60 = 10,777.44 : x
  2. Step 2: Convert to fraction form
    20,160.88/30,176.60 = 10,777.44/x
  3. Step 3: Cross multiply
    20,160.88x = 30,176.60 × 10,777.44
  4. Step 4: Simplify right side
    20,160.88x = 325,226,495.90
  5. Step 5: Solve for x
    x = 325,226,495.90/20,160.88
  6. Step 6: Final answer
    x = 16,131.56

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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.