Home / 20,162.43-27,823.53-11,087.77

Finding the Fourth Proportional to 20,162.43, 27,823.53 and 11,087.77

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Solution

The fourth proportional to 20,162.43, 27,823.53 and 11,087.77 is: 15,300.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.43 : 27,823.53 = 11,087.77 : x
  2. Step 2: Convert to fraction form
    20,162.43/27,823.53 = 11,087.77/x
  3. Step 3: Cross multiply
    20,162.43x = 27,823.53 × 11,087.77
  4. Step 4: Simplify right side
    20,162.43x = 308,500,901.23
  5. Step 5: Solve for x
    x = 308,500,901.23/20,162.43
  6. Step 6: Final answer
    x = 15,300.78

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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.