Home / 20,195.42-30,299.31-10,341.68

Finding the Fourth Proportional to 20,195.42, 30,299.31 and 10,341.68

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Solution

The fourth proportional to 20,195.42, 30,299.31 and 10,341.68 is: 15,515.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.42 : 30,299.31 = 10,341.68 : x
  2. Step 2: Convert to fraction form
    20,195.42/30,299.31 = 10,341.68/x
  3. Step 3: Cross multiply
    20,195.42x = 30,299.31 × 10,341.68
  4. Step 4: Simplify right side
    20,195.42x = 313,345,616.74
  5. Step 5: Solve for x
    x = 313,345,616.74/20,195.42
  6. Step 6: Final answer
    x = 15,515.68

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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.