Home / 20,170.36-27,834.61-10,971.68

Finding the Fourth Proportional to 20,170.36, 27,834.61 and 10,971.68

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Solution

The fourth proportional to 20,170.36, 27,834.61 and 10,971.68 is: 15,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.36 : 27,834.61 = 10,971.68 : x
  2. Step 2: Convert to fraction form
    20,170.36/27,834.61 = 10,971.68/x
  3. Step 3: Cross multiply
    20,170.36x = 27,834.61 × 10,971.68
  4. Step 4: Simplify right side
    20,170.36x = 305,392,433.84
  5. Step 5: Solve for x
    x = 305,392,433.84/20,170.36
  6. Step 6: Final answer
    x = 15,140.65

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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.