Home / 21,348.09-29,459.30-11,914.83

Finding the Fourth Proportional to 21,348.09, 29,459.30 and 11,914.83

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Solution

The fourth proportional to 21,348.09, 29,459.30 and 11,914.83 is: 16,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,348.09 : 29,459.30 = 11,914.83 : x
  2. Step 2: Convert to fraction form
    21,348.09/29,459.30 = 11,914.83/x
  3. Step 3: Cross multiply
    21,348.09x = 29,459.30 × 11,914.83
  4. Step 4: Simplify right side
    21,348.09x = 351,002,491.84
  5. Step 5: Solve for x
    x = 351,002,491.84/21,348.09
  6. Step 6: Final answer
    x = 16,441.87

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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.