Home / 20,089.35-27,728.46-12,137.04

Finding the Fourth Proportional to 20,089.35, 27,728.46 and 12,137.04

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Solution

The fourth proportional to 20,089.35, 27,728.46 and 12,137.04 is: 16,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,089.35 : 27,728.46 = 12,137.04 : x
  2. Step 2: Convert to fraction form
    20,089.35/27,728.46 = 12,137.04/x
  3. Step 3: Cross multiply
    20,089.35x = 27,728.46 × 12,137.04
  4. Step 4: Simplify right side
    20,089.35x = 336,541,428.16
  5. Step 5: Solve for x
    x = 336,541,428.16/20,089.35
  6. Step 6: Final answer
    x = 16,752.23

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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.