Home / 21,562.58-29,757.66-12,131.84

Finding the Fourth Proportional to 21,562.58, 29,757.66 and 12,131.84

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Solution

The fourth proportional to 21,562.58, 29,757.66 and 12,131.84 is: 16,742.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.58 : 29,757.66 = 12,131.84 : x
  2. Step 2: Convert to fraction form
    21,562.58/29,757.66 = 12,131.84/x
  3. Step 3: Cross multiply
    21,562.58x = 29,757.66 × 12,131.84
  4. Step 4: Simplify right side
    21,562.58x = 361,015,169.89
  5. Step 5: Solve for x
    x = 361,015,169.89/21,562.58
  6. Step 6: Final answer
    x = 16,742.67

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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.