Home / 20,195.79-30,299.87-10,342.04

Finding the Fourth Proportional to 20,195.79, 30,299.87 and 10,342.04

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Solution

The fourth proportional to 20,195.79, 30,299.87 and 10,342.04 is: 15,516.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.79 : 30,299.87 = 10,342.04 : x
  2. Step 2: Convert to fraction form
    20,195.79/30,299.87 = 10,342.04/x
  3. Step 3: Cross multiply
    20,195.79x = 30,299.87 × 10,342.04
  4. Step 4: Simplify right side
    20,195.79x = 313,362,264.33
  5. Step 5: Solve for x
    x = 313,362,264.33/20,195.79
  6. Step 6: Final answer
    x = 15,516.22

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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.