Home / 20,342.92-30,513.48-7,195.40

Finding the Fourth Proportional to 20,342.92, 30,513.48 and 7,195.40

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Solution

The fourth proportional to 20,342.92, 30,513.48 and 7,195.40 is: 10,792.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.92 : 30,513.48 = 7,195.40 : x
  2. Step 2: Convert to fraction form
    20,342.92/30,513.48 = 7,195.40/x
  3. Step 3: Cross multiply
    20,342.92x = 30,513.48 × 7,195.40
  4. Step 4: Simplify right side
    20,342.92x = 219,556,693.99
  5. Step 5: Solve for x
    x = 219,556,693.99/20,342.92
  6. Step 6: Final answer
    x = 10,792.78

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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.