Home / 20,133.75-27,787.01-12,176.72

Finding the Fourth Proportional to 20,133.75, 27,787.01 and 12,176.72

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Solution

The fourth proportional to 20,133.75, 27,787.01 and 12,176.72 is: 16,805.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.75 : 27,787.01 = 12,176.72 : x
  2. Step 2: Convert to fraction form
    20,133.75/27,787.01 = 12,176.72/x
  3. Step 3: Cross multiply
    20,133.75x = 27,787.01 × 12,176.72
  4. Step 4: Simplify right side
    20,133.75x = 338,354,640.41
  5. Step 5: Solve for x
    x = 338,354,640.41/20,133.75
  6. Step 6: Final answer
    x = 16,805.35

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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.