Home / 21,433.15-29,577.06-11,872.65

Finding the Fourth Proportional to 21,433.15, 29,577.06 and 11,872.65

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Solution

The fourth proportional to 21,433.15, 29,577.06 and 11,872.65 is: 16,383.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.15 : 29,577.06 = 11,872.65 : x
  2. Step 2: Convert to fraction form
    21,433.15/29,577.06 = 11,872.65/x
  3. Step 3: Cross multiply
    21,433.15x = 29,577.06 × 11,872.65
  4. Step 4: Simplify right side
    21,433.15x = 351,158,081.41
  5. Step 5: Solve for x
    x = 351,158,081.41/21,433.15
  6. Step 6: Final answer
    x = 16,383.88

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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.