Home / 20,146.86-30,209.87-9,043.99

Finding the Fourth Proportional to 20,146.86, 30,209.87 and 9,043.99

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Solution

The fourth proportional to 20,146.86, 30,209.87 and 9,043.99 is: 13,561.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.86 : 30,209.87 = 9,043.99 : x
  2. Step 2: Convert to fraction form
    20,146.86/30,209.87 = 9,043.99/x
  3. Step 3: Cross multiply
    20,146.86x = 30,209.87 × 9,043.99
  4. Step 4: Simplify right side
    20,146.86x = 273,217,716.96
  5. Step 5: Solve for x
    x = 273,217,716.96/20,146.86
  6. Step 6: Final answer
    x = 13,561.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.