Home / 20,102.42-27,737.33-12,145.08

Finding the Fourth Proportional to 20,102.42, 27,737.33 and 12,145.08

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Solution

The fourth proportional to 20,102.42, 27,737.33 and 12,145.08 is: 16,757.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,102.42 : 27,737.33 = 12,145.08 : x
  2. Step 2: Convert to fraction form
    20,102.42/27,737.33 = 12,145.08/x
  3. Step 3: Cross multiply
    20,102.42x = 27,737.33 × 12,145.08
  4. Step 4: Simplify right side
    20,102.42x = 336,872,122.20
  5. Step 5: Solve for x
    x = 336,872,122.20/20,102.42
  6. Step 6: Final answer
    x = 16,757.79

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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.