Home / 20,196.20-30,326.70-13,651.40

Finding the Fourth Proportional to 20,196.20, 30,326.70 and 13,651.40

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Solution

The fourth proportional to 20,196.20, 30,326.70 and 13,651.40 is: 20,499.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196.20 : 30,326.70 = 13,651.40 : x
  2. Step 2: Convert to fraction form
    20,196.20/30,326.70 = 13,651.40/x
  3. Step 3: Cross multiply
    20,196.20x = 30,326.70 × 13,651.40
  4. Step 4: Simplify right side
    20,196.20x = 414,001,912.38
  5. Step 5: Solve for x
    x = 414,001,912.38/20,196.20
  6. Step 6: Final answer
    x = 20,499.00

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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.