Home / 21,867.33-30,175.92-13,383.57

Finding the Fourth Proportional to 21,867.33, 30,175.92 and 13,383.57

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Solution

The fourth proportional to 21,867.33, 30,175.92 and 13,383.57 is: 18,468.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,867.33 : 30,175.92 = 13,383.57 : x
  2. Step 2: Convert to fraction form
    21,867.33/30,175.92 = 13,383.57/x
  3. Step 3: Cross multiply
    21,867.33x = 30,175.92 × 13,383.57
  4. Step 4: Simplify right side
    21,867.33x = 403,861,537.63
  5. Step 5: Solve for x
    x = 403,861,537.63/21,867.33
  6. Step 6: Final answer
    x = 18,468.72

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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.