Home / 21,691.04-29,933.68-11,755.04

Finding the Fourth Proportional to 21,691.04, 29,933.68 and 11,755.04

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Solution

The fourth proportional to 21,691.04, 29,933.68 and 11,755.04 is: 16,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,691.04 : 29,933.68 = 11,755.04 : x
  2. Step 2: Convert to fraction form
    21,691.04/29,933.68 = 11,755.04/x
  3. Step 3: Cross multiply
    21,691.04x = 29,933.68 × 11,755.04
  4. Step 4: Simplify right side
    21,691.04x = 351,871,605.75
  5. Step 5: Solve for x
    x = 351,871,605.75/21,691.04
  6. Step 6: Final answer
    x = 16,221.98

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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.