Home / 21,344.84-29,457.50-11,786.56

Finding the Fourth Proportional to 21,344.84, 29,457.50 and 11,786.56

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Solution

The fourth proportional to 21,344.84, 29,457.50 and 11,786.56 is: 16,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.84 : 29,457.50 = 11,786.56 : x
  2. Step 2: Convert to fraction form
    21,344.84/29,457.50 = 11,786.56/x
  3. Step 3: Cross multiply
    21,344.84x = 29,457.50 × 11,786.56
  4. Step 4: Simplify right side
    21,344.84x = 347,202,591.20
  5. Step 5: Solve for x
    x = 347,202,591.20/21,344.84
  6. Step 6: Final answer
    x = 16,266.35

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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.