Home / 21,334.53-29,441.67-11,903.09

Finding the Fourth Proportional to 21,334.53, 29,441.67 and 11,903.09

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Solution

The fourth proportional to 21,334.53, 29,441.67 and 11,903.09 is: 16,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.53 : 29,441.67 = 11,903.09 : x
  2. Step 2: Convert to fraction form
    21,334.53/29,441.67 = 11,903.09/x
  3. Step 3: Cross multiply
    21,334.53x = 29,441.67 × 11,903.09
  4. Step 4: Simplify right side
    21,334.53x = 350,446,847.76
  5. Step 5: Solve for x
    x = 350,446,847.76/21,334.53
  6. Step 6: Final answer
    x = 16,426.27

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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.