Home / 21,086.21-29,099.00-12,133.53

Finding the Fourth Proportional to 21,086.21, 29,099.00 and 12,133.53

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Solution

The fourth proportional to 21,086.21, 29,099.00 and 12,133.53 is: 16,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,086.21 : 29,099.00 = 12,133.53 : x
  2. Step 2: Convert to fraction form
    21,086.21/29,099.00 = 12,133.53/x
  3. Step 3: Cross multiply
    21,086.21x = 29,099.00 × 12,133.53
  4. Step 4: Simplify right side
    21,086.21x = 353,073,528.80
  5. Step 5: Solve for x
    x = 353,073,528.80/21,086.21
  6. Step 6: Final answer
    x = 16,744.29

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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.