Home / 20,652.50-28,504.58-13,107.83

Finding the Fourth Proportional to 20,652.50, 28,504.58 and 13,107.83

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Solution

The fourth proportional to 20,652.50, 28,504.58 and 13,107.83 is: 18,091.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.50 : 28,504.58 = 13,107.83 : x
  2. Step 2: Convert to fraction form
    20,652.50/28,504.58 = 13,107.83/x
  3. Step 3: Cross multiply
    20,652.50x = 28,504.58 × 13,107.83
  4. Step 4: Simplify right side
    20,652.50x = 373,632,980.80
  5. Step 5: Solve for x
    x = 373,632,980.80/20,652.50
  6. Step 6: Final answer
    x = 18,091.41

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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.