Home / 20,662.60-28,518.50-12,277.48

Finding the Fourth Proportional to 20,662.60, 28,518.50 and 12,277.48

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Solution

The fourth proportional to 20,662.60, 28,518.50 and 12,277.48 is: 16,945.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,662.60 : 28,518.50 = 12,277.48 : x
  2. Step 2: Convert to fraction form
    20,662.60/28,518.50 = 12,277.48/x
  3. Step 3: Cross multiply
    20,662.60x = 28,518.50 × 12,277.48
  4. Step 4: Simplify right side
    20,662.60x = 350,135,313.38
  5. Step 5: Solve for x
    x = 350,135,313.38/20,662.60
  6. Step 6: Final answer
    x = 16,945.37

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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.