Home / 20,649.96-28,494.53-12,150.22

Finding the Fourth Proportional to 20,649.96, 28,494.53 and 12,150.22

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Solution

The fourth proportional to 20,649.96, 28,494.53 and 12,150.22 is: 16,765.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.96 : 28,494.53 = 12,150.22 : x
  2. Step 2: Convert to fraction form
    20,649.96/28,494.53 = 12,150.22/x
  3. Step 3: Cross multiply
    20,649.96x = 28,494.53 × 12,150.22
  4. Step 4: Simplify right side
    20,649.96x = 346,214,808.30
  5. Step 5: Solve for x
    x = 346,214,808.30/20,649.96
  6. Step 6: Final answer
    x = 16,765.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.