Home / 21,429.12-29,567.04-11,996.16

Finding the Fourth Proportional to 21,429.12, 29,567.04 and 11,996.16

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Solution

The fourth proportional to 21,429.12, 29,567.04 and 11,996.16 is: 16,551.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.12 : 29,567.04 = 11,996.16 : x
  2. Step 2: Convert to fraction form
    21,429.12/29,567.04 = 11,996.16/x
  3. Step 3: Cross multiply
    21,429.12x = 29,567.04 × 11,996.16
  4. Step 4: Simplify right side
    21,429.12x = 354,690,942.57
  5. Step 5: Solve for x
    x = 354,690,942.57/21,429.12
  6. Step 6: Final answer
    x = 16,551.82

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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.