Home / 21,284.55-29,372.33-11,725.35

Finding the Fourth Proportional to 21,284.55, 29,372.33 and 11,725.35

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Solution

The fourth proportional to 21,284.55, 29,372.33 and 11,725.35 is: 16,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,284.55 : 29,372.33 = 11,725.35 : x
  2. Step 2: Convert to fraction form
    21,284.55/29,372.33 = 11,725.35/x
  3. Step 3: Cross multiply
    21,284.55x = 29,372.33 × 11,725.35
  4. Step 4: Simplify right side
    21,284.55x = 344,400,849.57
  5. Step 5: Solve for x
    x = 344,400,849.57/21,284.55
  6. Step 6: Final answer
    x = 16,180.79

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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.