Home / 21,965.94-30,305.16-13,464.99

Finding the Fourth Proportional to 21,965.94, 30,305.16 and 13,464.99

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Solution

The fourth proportional to 21,965.94, 30,305.16 and 13,464.99 is: 18,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,965.94 : 30,305.16 = 13,464.99 : x
  2. Step 2: Convert to fraction form
    21,965.94/30,305.16 = 13,464.99/x
  3. Step 3: Cross multiply
    21,965.94x = 30,305.16 × 13,464.99
  4. Step 4: Simplify right side
    21,965.94x = 408,058,676.35
  5. Step 5: Solve for x
    x = 408,058,676.35/21,965.94
  6. Step 6: Final answer
    x = 18,576.88

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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.