Home / 19,411.88-29,111.67-12,872.75

Finding the Fourth Proportional to 19,411.88, 29,111.67 and 12,872.75

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Solution

The fourth proportional to 19,411.88, 29,111.67 and 12,872.75 is: 19,305.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,411.88 : 29,111.67 = 12,872.75 : x
  2. Step 2: Convert to fraction form
    19,411.88/29,111.67 = 12,872.75/x
  3. Step 3: Cross multiply
    19,411.88x = 29,111.67 × 12,872.75
  4. Step 4: Simplify right side
    19,411.88x = 374,747,104.43
  5. Step 5: Solve for x
    x = 374,747,104.43/19,411.88
  6. Step 6: Final answer
    x = 19,305.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.