Home / 20,101.40-27,737.46-12,144.20

Finding the Fourth Proportional to 20,101.40, 27,737.46 and 12,144.20

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Solution

The fourth proportional to 20,101.40, 27,737.46 and 12,144.20 is: 16,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.40 : 27,737.46 = 12,144.20 : x
  2. Step 2: Convert to fraction form
    20,101.40/27,737.46 = 12,144.20/x
  3. Step 3: Cross multiply
    20,101.40x = 27,737.46 × 12,144.20
  4. Step 4: Simplify right side
    20,101.40x = 336,849,261.73
  5. Step 5: Solve for x
    x = 336,849,261.73/20,101.40
  6. Step 6: Final answer
    x = 16,757.50

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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.