Home / 20,072.56-27,718.90-12,914.94

Finding the Fourth Proportional to 20,072.56, 27,718.90 and 12,914.94

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Solution

The fourth proportional to 20,072.56, 27,718.90 and 12,914.94 is: 17,834.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.56 : 27,718.90 = 12,914.94 : x
  2. Step 2: Convert to fraction form
    20,072.56/27,718.90 = 12,914.94/x
  3. Step 3: Cross multiply
    20,072.56x = 27,718.90 × 12,914.94
  4. Step 4: Simplify right side
    20,072.56x = 357,987,930.37
  5. Step 5: Solve for x
    x = 357,987,930.37/20,072.56
  6. Step 6: Final answer
    x = 17,834.69

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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.