Home / 20,021.57-27,629.87-10,946.96

Finding the Fourth Proportional to 20,021.57, 27,629.87 and 10,946.96

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Solution

The fourth proportional to 20,021.57, 27,629.87 and 10,946.96 is: 15,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.57 : 27,629.87 = 10,946.96 : x
  2. Step 2: Convert to fraction form
    20,021.57/27,629.87 = 10,946.96/x
  3. Step 3: Cross multiply
    20,021.57x = 27,629.87 × 10,946.96
  4. Step 4: Simplify right side
    20,021.57x = 302,463,081.70
  5. Step 5: Solve for x
    x = 302,463,081.70/20,021.57
  6. Step 6: Final answer
    x = 15,106.86

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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.