Home / 20,195.07-30,282.54-12,793.90

Finding the Fourth Proportional to 20,195.07, 30,282.54 and 12,793.90

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Solution

The fourth proportional to 20,195.07, 30,282.54 and 12,793.90 is: 19,184.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.07 : 30,282.54 = 12,793.90 : x
  2. Step 2: Convert to fraction form
    20,195.07/30,282.54 = 12,793.90/x
  3. Step 3: Cross multiply
    20,195.07x = 30,282.54 × 12,793.90
  4. Step 4: Simplify right side
    20,195.07x = 387,431,788.51
  5. Step 5: Solve for x
    x = 387,431,788.51/20,195.07
  6. Step 6: Final answer
    x = 19,184.47

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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.