Home / 21,584.25-29,787.48-12,153.42

Finding the Fourth Proportional to 21,584.25, 29,787.48 and 12,153.42

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Solution

The fourth proportional to 21,584.25, 29,787.48 and 12,153.42 is: 16,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,584.25 : 29,787.48 = 12,153.42 : x
  2. Step 2: Convert to fraction form
    21,584.25/29,787.48 = 12,153.42/x
  3. Step 3: Cross multiply
    21,584.25x = 29,787.48 × 12,153.42
  4. Step 4: Simplify right side
    21,584.25x = 362,019,755.18
  5. Step 5: Solve for x
    x = 362,019,755.18/21,584.25
  6. Step 6: Final answer
    x = 16,772.40

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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.