Home / 20,121.87-27,763.23-12,056.82

Finding the Fourth Proportional to 20,121.87, 27,763.23 and 12,056.82

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Solution

The fourth proportional to 20,121.87, 27,763.23 and 12,056.82 is: 16,635.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121.87 : 27,763.23 = 12,056.82 : x
  2. Step 2: Convert to fraction form
    20,121.87/27,763.23 = 12,056.82/x
  3. Step 3: Cross multiply
    20,121.87x = 27,763.23 × 12,056.82
  4. Step 4: Simplify right side
    20,121.87x = 334,736,266.73
  5. Step 5: Solve for x
    x = 334,736,266.73/20,121.87
  6. Step 6: Final answer
    x = 16,635.45

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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.