Home / 20,910.27-28,816.30-20,525.93

Finding the Fourth Proportional to 20,910.27, 28,816.30 and 20,525.93

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Solution

The fourth proportional to 20,910.27, 28,816.30 and 20,525.93 is: 28,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910.27 : 28,816.30 = 20,525.93 : x
  2. Step 2: Convert to fraction form
    20,910.27/28,816.30 = 20,525.93/x
  3. Step 3: Cross multiply
    20,910.27x = 28,816.30 × 20,525.93
  4. Step 4: Simplify right side
    20,910.27x = 591,481,346.30
  5. Step 5: Solve for x
    x = 591,481,346.30/20,910.27
  6. Step 6: Final answer
    x = 28,286.64

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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.