Home / 21,193.60-29,249.76-11,765.20

Finding the Fourth Proportional to 21,193.60, 29,249.76 and 11,765.20

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Solution

The fourth proportional to 21,193.60, 29,249.76 and 11,765.20 is: 16,237.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193.60 : 29,249.76 = 11,765.20 : x
  2. Step 2: Convert to fraction form
    21,193.60/29,249.76 = 11,765.20/x
  3. Step 3: Cross multiply
    21,193.60x = 29,249.76 × 11,765.20
  4. Step 4: Simplify right side
    21,193.60x = 344,129,276.35
  5. Step 5: Solve for x
    x = 344,129,276.35/21,193.60
  6. Step 6: Final answer
    x = 16,237.41

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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.